Home / 129,099,472,451.58-178,157,890,766.49-71,227,849,355.46

Finding the Fourth Proportional to 129,099,472,451.58, 178,157,890,766.49 and 71,227,849,355.46

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Solution

The fourth proportional to 129,099,472,451.58, 178,157,890,766.49 and 71,227,849,355.46 is: 98,294,773,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,099,472,451.58 : 178,157,890,766.49 = 71,227,849,355.46 : x
  2. Step 2: Convert to fraction form
    129,099,472,451.58/178,157,890,766.49 = 71,227,849,355.46/x
  3. Step 3: Cross multiply
    129,099,472,451.58x = 178,157,890,766.49 × 71,227,849,355.46
  4. Step 4: Simplify right side
    129,099,472,451.58x = 12,689,803,405,002,048,274,432
  5. Step 5: Solve for x
    x = 12,689,803,405,002,048,274,432/129,099,472,451.58
  6. Step 6: Final answer
    x = 98,294,773,510.88

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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.