Home / 252,497,149.32-378,410,894.28-129,670,505.40

Finding the Fourth Proportional to 252,497,149.32, 378,410,894.28 and 129,670,505.40

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Solution

The fourth proportional to 252,497,149.32, 378,410,894.28 and 129,670,505.40 is: 194,333,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,497,149.32 : 378,410,894.28 = 129,670,505.40 : x
  2. Step 2: Convert to fraction form
    252,497,149.32/378,410,894.28 = 129,670,505.40/x
  3. Step 3: Cross multiply
    252,497,149.32x = 378,410,894.28 × 129,670,505.40
  4. Step 4: Simplify right side
    252,497,149.32x = 49,068,731,910,153,568
  5. Step 5: Solve for x
    x = 49,068,731,910,153,568/252,497,149.32
  6. Step 6: Final answer
    x = 194,333,805.52

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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.