Home / 80,885,537.10-121,328,305.65-67,971,520.80

Finding the Fourth Proportional to 80,885,537.10, 121,328,305.65 and 67,971,520.80

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Solution

The fourth proportional to 80,885,537.10, 121,328,305.65 and 67,971,520.80 is: 101,957,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,885,537.10 : 121,328,305.65 = 67,971,520.80 : x
  2. Step 2: Convert to fraction form
    80,885,537.10/121,328,305.65 = 67,971,520.80/x
  3. Step 3: Cross multiply
    80,885,537.10x = 121,328,305.65 × 67,971,520.80
  4. Step 4: Simplify right side
    80,885,537.10x = 8,246,869,451,117,733
  5. Step 5: Solve for x
    x = 8,246,869,451,117,733/80,885,537.10
  6. Step 6: Final answer
    x = 101,957,281.20

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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.