Home / 103,103,839.04-142,279,473.12-56,691,331.52

Finding the Fourth Proportional to 103,103,839.04, 142,279,473.12 and 56,691,331.52

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Solution

The fourth proportional to 103,103,839.04, 142,279,473.12 and 56,691,331.52 is: 78,231,934.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,103,839.04 : 142,279,473.12 = 56,691,331.52 : x
  2. Step 2: Convert to fraction form
    103,103,839.04/142,279,473.12 = 56,691,331.52/x
  3. Step 3: Cross multiply
    103,103,839.04x = 142,279,473.12 × 56,691,331.52
  4. Step 4: Simplify right side
    103,103,839.04x = 8,066,012,779,136,849
  5. Step 5: Solve for x
    x = 8,066,012,779,136,849/103,103,839.04
  6. Step 6: Final answer
    x = 78,231,934.47

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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.