Home / 318,979,892.20-478,469,838.30-173,861,069.80

Finding the Fourth Proportional to 318,979,892.20, 478,469,838.30 and 173,861,069.80

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Solution

The fourth proportional to 318,979,892.20, 478,469,838.30 and 173,861,069.80 is: 260,791,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,979,892.20 : 478,469,838.30 = 173,861,069.80 : x
  2. Step 2: Convert to fraction form
    318,979,892.20/478,469,838.30 = 173,861,069.80/x
  3. Step 3: Cross multiply
    318,979,892.20x = 478,469,838.30 × 173,861,069.80
  4. Step 4: Simplify right side
    318,979,892.20x = 83,187,277,953,871,024
  5. Step 5: Solve for x
    x = 83,187,277,953,871,024/318,979,892.20
  6. Step 6: Final answer
    x = 260,791,604.70

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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.