Home / 67,154,438.60-100,731,657.90-21,720,825.80

Finding the Fourth Proportional to 67,154,438.60, 100,731,657.90 and 21,720,825.80

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Solution

The fourth proportional to 67,154,438.60, 100,731,657.90 and 21,720,825.80 is: 32,581,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,154,438.60 : 100,731,657.90 = 21,720,825.80 : x
  2. Step 2: Convert to fraction form
    67,154,438.60/100,731,657.90 = 21,720,825.80/x
  3. Step 3: Cross multiply
    67,154,438.60x = 100,731,657.90 × 21,720,825.80
  4. Step 4: Simplify right side
    67,154,438.60x = 2,187,974,793,791,094
  5. Step 5: Solve for x
    x = 2,187,974,793,791,094/67,154,438.60
  6. Step 6: Final answer
    x = 32,581,238.70

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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.