Home / 66,855,279.80-92,279,418-39,369,151.28

Finding the Fourth Proportional to 66,855,279.80, 92,279,418 and 39,369,151.28

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Solution

The fourth proportional to 66,855,279.80, 92,279,418 and 39,369,151.28 is: 54,340,694.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,855,279.80 : 92,279,418 = 39,369,151.28 : x
  2. Step 2: Convert to fraction form
    66,855,279.80/92,279,418 = 39,369,151.28/x
  3. Step 3: Cross multiply
    66,855,279.80x = 92,279,418 × 39,369,151.28
  4. Step 4: Simplify right side
    66,855,279.80x = 3,632,962,367,272,355
  5. Step 5: Solve for x
    x = 3,632,962,367,272,355/66,855,279.80
  6. Step 6: Final answer
    x = 54,340,694.98

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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.