Home / 345,150,979.20-517,726,468.80-254,451,715.20

Finding the Fourth Proportional to 345,150,979.20, 517,726,468.80 and 254,451,715.20

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Solution

The fourth proportional to 345,150,979.20, 517,726,468.80 and 254,451,715.20 is: 381,677,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,150,979.20 : 517,726,468.80 = 254,451,715.20 : x
  2. Step 2: Convert to fraction form
    345,150,979.20/517,726,468.80 = 254,451,715.20/x
  3. Step 3: Cross multiply
    345,150,979.20x = 517,726,468.80 × 254,451,715.20
  4. Step 4: Simplify right side
    345,150,979.20x = 131,736,387,990,599,280
  5. Step 5: Solve for x
    x = 131,736,387,990,599,280/345,150,979.20
  6. Step 6: Final answer
    x = 381,677,572.80

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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.