Home / 266,119,097.70-399,178,646.55-129,891,872.10

Finding the Fourth Proportional to 266,119,097.70, 399,178,646.55 and 129,891,872.10

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Solution

The fourth proportional to 266,119,097.70, 399,178,646.55 and 129,891,872.10 is: 194,837,808.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,119,097.70 : 399,178,646.55 = 129,891,872.10 : x
  2. Step 2: Convert to fraction form
    266,119,097.70/399,178,646.55 = 129,891,872.10/x
  3. Step 3: Cross multiply
    266,119,097.70x = 399,178,646.55 × 129,891,872.10
  4. Step 4: Simplify right side
    266,119,097.70x = 51,850,061,702,723,704
  5. Step 5: Solve for x
    x = 51,850,061,702,723,704/266,119,097.70
  6. Step 6: Final answer
    x = 194,837,808.15

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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.