Home / 21,581,528.40-32,367,108.60-12,463,909.20

Finding the Fourth Proportional to 21,581,528.40, 32,367,108.60 and 12,463,909.20

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Solution

The fourth proportional to 21,581,528.40, 32,367,108.60 and 12,463,909.20 is: 18,692,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,528.40 : 32,367,108.60 = 12,463,909.20 : x
  2. Step 2: Convert to fraction form
    21,581,528.40/32,367,108.60 = 12,463,909.20/x
  3. Step 3: Cross multiply
    21,581,528.40x = 32,367,108.60 × 12,463,909.20
  4. Step 4: Simplify right side
    21,581,528.40x = 403,420,702,656,939.12
  5. Step 5: Solve for x
    x = 403,420,702,656,939.12/21,581,528.40
  6. Step 6: Final answer
    x = 18,692,869.90

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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.