Home / 1,409,761,921.49-1,945,357,394.59-815,084,560.07

Finding the Fourth Proportional to 1,409,761,921.49, 1,945,357,394.59 and 815,084,560.07

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Solution

The fourth proportional to 1,409,761,921.49, 1,945,357,394.59 and 815,084,560.07 is: 1,124,750,748.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,761,921.49 : 1,945,357,394.59 = 815,084,560.07 : x
  2. Step 2: Convert to fraction form
    1,409,761,921.49/1,945,357,394.59 = 815,084,560.07/x
  3. Step 3: Cross multiply
    1,409,761,921.49x = 1,945,357,394.59 × 815,084,560.07
  4. Step 4: Simplify right side
    1,409,761,921.49x = 1,585,630,776,148,311,552
  5. Step 5: Solve for x
    x = 1,585,630,776,148,311,552/1,409,761,921.49
  6. Step 6: Final answer
    x = 1,124,750,748.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.