Home / 1,123,298,028.30-1,684,947,042.45-1,091,012,987.55

Finding the Fourth Proportional to 1,123,298,028.30, 1,684,947,042.45 and 1,091,012,987.55

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Solution

The fourth proportional to 1,123,298,028.30, 1,684,947,042.45 and 1,091,012,987.55 is: 1,636,519,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,298,028.30 : 1,684,947,042.45 = 1,091,012,987.55 : x
  2. Step 2: Convert to fraction form
    1,123,298,028.30/1,684,947,042.45 = 1,091,012,987.55/x
  3. Step 3: Cross multiply
    1,123,298,028.30x = 1,684,947,042.45 × 1,091,012,987.55
  4. Step 4: Simplify right side
    1,123,298,028.30x = 1,838,299,106,646,911,232
  5. Step 5: Solve for x
    x = 1,838,299,106,646,911,232/1,123,298,028.30
  6. Step 6: Final answer
    x = 1,636,519,481.33

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Half scale
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Double scale
Find fourth proportional to 1,123,298,029.30, 1,684,947,043.95 and 1,091,012,988.55
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.