Home / 772,561,869.30-1,158,842,803.95-742,429,164.60

Finding the Fourth Proportional to 772,561,869.30, 1,158,842,803.95 and 742,429,164.60

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Solution

The fourth proportional to 772,561,869.30, 1,158,842,803.95 and 742,429,164.60 is: 1,113,643,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,561,869.30 : 1,158,842,803.95 = 742,429,164.60 : x
  2. Step 2: Convert to fraction form
    772,561,869.30/1,158,842,803.95 = 742,429,164.60/x
  3. Step 3: Cross multiply
    772,561,869.30x = 1,158,842,803.95 × 742,429,164.60
  4. Step 4: Simplify right side
    772,561,869.30x = 860,358,694,839,320,192
  5. Step 5: Solve for x
    x = 860,358,694,839,320,192/772,561,869.30
  6. Step 6: Final answer
    x = 1,113,643,746.90

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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.