Home / 20,104,281.60-30,156,422.40-12,451,531.20

Finding the Fourth Proportional to 20,104,281.60, 30,156,422.40 and 12,451,531.20

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Solution

The fourth proportional to 20,104,281.60, 30,156,422.40 and 12,451,531.20 is: 18,677,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104,281.60 : 30,156,422.40 = 12,451,531.20 : x
  2. Step 2: Convert to fraction form
    20,104,281.60/30,156,422.40 = 12,451,531.20/x
  3. Step 3: Cross multiply
    20,104,281.60x = 30,156,422.40 × 12,451,531.20
  4. Step 4: Simplify right side
    20,104,281.60x = 375,493,634,393,978.81
  5. Step 5: Solve for x
    x = 375,493,634,393,978.81/20,104,281.60
  6. Step 6: Final answer
    x = 18,677,296.80

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1.5x scale

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.