Home / 145,451,823.28-200,727,755.09-79,376,577.55

Finding the Fourth Proportional to 145,451,823.28, 200,727,755.09 and 79,376,577.55

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Solution

The fourth proportional to 145,451,823.28, 200,727,755.09 and 79,376,577.55 is: 109,541,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,451,823.28 : 200,727,755.09 = 79,376,577.55 : x
  2. Step 2: Convert to fraction form
    145,451,823.28/200,727,755.09 = 79,376,577.55/x
  3. Step 3: Cross multiply
    145,451,823.28x = 200,727,755.09 × 79,376,577.55
  4. Step 4: Simplify right side
    145,451,823.28x = 15,933,082,218,044,938
  5. Step 5: Solve for x
    x = 15,933,082,218,044,938/145,451,823.28
  6. Step 6: Final answer
    x = 109,541,990.32

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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.