Home / 187,891,832.80-281,745,542.04-77,207,451.40

Finding the Fourth Proportional to 187,891,832.80, 281,745,542.04 and 77,207,451.40

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Solution

The fourth proportional to 187,891,832.80, 281,745,542.04 and 77,207,451.40 is: 115,773,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,891,832.80 : 281,745,542.04 = 77,207,451.40 : x
  2. Step 2: Convert to fraction form
    187,891,832.80/281,745,542.04 = 77,207,451.40/x
  3. Step 3: Cross multiply
    187,891,832.80x = 281,745,542.04 × 77,207,451.40
  4. Step 4: Simplify right side
    187,891,832.80x = 21,752,855,244,219,960
  5. Step 5: Solve for x
    x = 21,752,855,244,219,960/187,891,832.80
  6. Step 6: Final answer
    x = 115,773,287.85

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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.