Home / 465,928,781.48-642,995,176.56-257,098,372.28

Finding the Fourth Proportional to 465,928,781.48, 642,995,176.56 and 257,098,372.28

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Solution

The fourth proportional to 465,928,781.48, 642,995,176.56 and 257,098,372.28 is: 354,803,179.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,928,781.48 : 642,995,176.56 = 257,098,372.28 : x
  2. Step 2: Convert to fraction form
    465,928,781.48/642,995,176.56 = 257,098,372.28/x
  3. Step 3: Cross multiply
    465,928,781.48x = 642,995,176.56 × 257,098,372.28
  4. Step 4: Simplify right side
    465,928,781.48x = 165,313,013,277,467,200
  5. Step 5: Solve for x
    x = 165,313,013,277,467,200/465,928,781.48
  6. Step 6: Final answer
    x = 354,803,179.90

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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.