Home / 21,866,355.60-32,829,082.20-12,777,766.80

Finding the Fourth Proportional to 21,866,355.60, 32,829,082.20 and 12,777,766.80

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Solution

The fourth proportional to 21,866,355.60, 32,829,082.20 and 12,777,766.80 is: 19,183,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866,355.60 : 32,829,082.20 = 12,777,766.80 : x
  2. Step 2: Convert to fraction form
    21,866,355.60/32,829,082.20 = 12,777,766.80/x
  3. Step 3: Cross multiply
    21,866,355.60x = 32,829,082.20 × 12,777,766.80
  4. Step 4: Simplify right side
    21,866,355.60x = 419,482,356,609,631
  5. Step 5: Solve for x
    x = 419,482,356,609,631/21,866,355.60
  6. Step 6: Final answer
    x = 19,183,917.26

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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.