Home / 356,292,387.40-534,438,581.10-321,855,010.60

Finding the Fourth Proportional to 356,292,387.40, 534,438,581.10 and 321,855,010.60

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Solution

The fourth proportional to 356,292,387.40, 534,438,581.10 and 321,855,010.60 is: 482,782,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,292,387.40 : 534,438,581.10 = 321,855,010.60 : x
  2. Step 2: Convert to fraction form
    356,292,387.40/534,438,581.10 = 321,855,010.60/x
  3. Step 3: Cross multiply
    356,292,387.40x = 534,438,581.10 × 321,855,010.60
  4. Step 4: Simplify right side
    356,292,387.40x = 172,011,735,184,989,472
  5. Step 5: Solve for x
    x = 172,011,735,184,989,472/356,292,387.40
  6. Step 6: Final answer
    x = 482,782,515.90

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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.