Home / 266,780,447.73-400,307,471.80-128,723,793.71

Finding the Fourth Proportional to 266,780,447.73, 400,307,471.80 and 128,723,793.71

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Solution

The fourth proportional to 266,780,447.73, 400,307,471.80 and 128,723,793.71 is: 193,151,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,780,447.73 : 400,307,471.80 = 128,723,793.71 : x
  2. Step 2: Convert to fraction form
    266,780,447.73/400,307,471.80 = 128,723,793.71/x
  3. Step 3: Cross multiply
    266,780,447.73x = 400,307,471.80 × 128,723,793.71
  4. Step 4: Simplify right side
    266,780,447.73x = 51,529,096,418,231,496
  5. Step 5: Solve for x
    x = 51,529,096,418,231,496/266,780,447.73
  6. Step 6: Final answer
    x = 193,151,697.80

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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.