Home / 284,195,487.44-392,197,414.92-172,648,378.64

Finding the Fourth Proportional to 284,195,487.44, 392,197,414.92 and 172,648,378.64

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Solution

The fourth proportional to 284,195,487.44, 392,197,414.92 and 172,648,378.64 is: 238,259,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,195,487.44 : 392,197,414.92 = 172,648,378.64 : x
  2. Step 2: Convert to fraction form
    284,195,487.44/392,197,414.92 = 172,648,378.64/x
  3. Step 3: Cross multiply
    284,195,487.44x = 392,197,414.92 × 172,648,378.64
  4. Step 4: Simplify right side
    284,195,487.44x = 67,712,247,792,737,344
  5. Step 5: Solve for x
    x = 67,712,247,792,737,344/284,195,487.44
  6. Step 6: Final answer
    x = 238,259,405.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.