Home / 252,142,609.83-378,225,505.85-77,253,118.71

Finding the Fourth Proportional to 252,142,609.83, 378,225,505.85 and 77,253,118.71

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Solution

The fourth proportional to 252,142,609.83, 378,225,505.85 and 77,253,118.71 is: 115,883,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,142,609.83 : 378,225,505.85 = 77,253,118.71 : x
  2. Step 2: Convert to fraction form
    252,142,609.83/378,225,505.85 = 77,253,118.71/x
  3. Step 3: Cross multiply
    252,142,609.83x = 378,225,505.85 × 77,253,118.71
  4. Step 4: Simplify right side
    252,142,609.83x = 29,219,099,902,193,584
  5. Step 5: Solve for x
    x = 29,219,099,902,193,584/252,142,609.83
  6. Step 6: Final answer
    x = 115,883,229.42

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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.