Home / 465,928,781.73-642,995,176.91-257,098,372.53

Finding the Fourth Proportional to 465,928,781.73, 642,995,176.91 and 257,098,372.53

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Solution

The fourth proportional to 465,928,781.73, 642,995,176.91 and 257,098,372.53 is: 354,803,180.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,928,781.73 : 642,995,176.91 = 257,098,372.53 : x
  2. Step 2: Convert to fraction form
    465,928,781.73/642,995,176.91 = 257,098,372.53/x
  3. Step 3: Cross multiply
    465,928,781.73x = 642,995,176.91 × 257,098,372.53
  4. Step 4: Simplify right side
    465,928,781.73x = 165,313,013,526,914,944
  5. Step 5: Solve for x
    x = 165,313,013,526,914,944/465,928,781.73
  6. Step 6: Final answer
    x = 354,803,180.25

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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.