Home / 21,493,847.20-32,198,780.40-12,948,800.80

Finding the Fourth Proportional to 21,493,847.20, 32,198,780.40 and 12,948,800.80

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Solution

The fourth proportional to 21,493,847.20, 32,198,780.40 and 12,948,800.80 is: 19,397,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,493,847.20 : 32,198,780.40 = 12,948,800.80 : x
  2. Step 2: Convert to fraction form
    21,493,847.20/32,198,780.40 = 12,948,800.80/x
  3. Step 3: Cross multiply
    21,493,847.20x = 32,198,780.40 × 12,948,800.80
  4. Step 4: Simplify right side
    21,493,847.20x = 416,935,593,402,544.31
  5. Step 5: Solve for x
    x = 416,935,593,402,544.31/21,493,847.20
  6. Step 6: Final answer
    x = 19,397,904.41

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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.