Home / 121,327,554.60-181,991,331.90-80,512,885.80

Finding the Fourth Proportional to 121,327,554.60, 181,991,331.90 and 80,512,885.80

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Solution

The fourth proportional to 121,327,554.60, 181,991,331.90 and 80,512,885.80 is: 120,769,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,327,554.60 : 181,991,331.90 = 80,512,885.80 : x
  2. Step 2: Convert to fraction form
    121,327,554.60/181,991,331.90 = 80,512,885.80/x
  3. Step 3: Cross multiply
    121,327,554.60x = 181,991,331.90 × 80,512,885.80
  4. Step 4: Simplify right side
    121,327,554.60x = 14,652,647,321,854,596
  5. Step 5: Solve for x
    x = 14,652,647,321,854,596/121,327,554.60
  6. Step 6: Final answer
    x = 120,769,328.70

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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.