Home / 318,979,891.20-478,469,836.80-173,861,068.80

Finding the Fourth Proportional to 318,979,891.20, 478,469,836.80 and 173,861,068.80

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Solution

The fourth proportional to 318,979,891.20, 478,469,836.80 and 173,861,068.80 is: 260,791,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,979,891.20 : 478,469,836.80 = 173,861,068.80 : x
  2. Step 2: Convert to fraction form
    318,979,891.20/478,469,836.80 = 173,861,068.80/x
  3. Step 3: Cross multiply
    318,979,891.20x = 478,469,836.80 × 173,861,068.80
  4. Step 4: Simplify right side
    318,979,891.20x = 83,187,277,214,609,584
  5. Step 5: Solve for x
    x = 83,187,277,214,609,584/318,979,891.20
  6. Step 6: Final answer
    x = 260,791,603.20

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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.