Home / 407,913,251.66-611,869,112.79-127,815,610.38

Finding the Fourth Proportional to 407,913,251.66, 611,869,112.79 and 127,815,610.38

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Solution

The fourth proportional to 407,913,251.66, 611,869,112.79 and 127,815,610.38 is: 191,723,175.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,913,251.66 : 611,869,112.79 = 127,815,610.38 : x
  2. Step 2: Convert to fraction form
    407,913,251.66/611,869,112.79 = 127,815,610.38/x
  3. Step 3: Cross multiply
    407,913,251.66x = 611,869,112.79 × 127,815,610.38
  4. Step 4: Simplify right side
    407,913,251.66x = 78,206,424,123,922,912
  5. Step 5: Solve for x
    x = 78,206,424,123,922,912/407,913,251.66
  6. Step 6: Final answer
    x = 191,723,175.96

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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.