Home / 12,482,387.60-18,723,581.40-8,171,373.20

Finding the Fourth Proportional to 12,482,387.60, 18,723,581.40 and 8,171,373.20

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Solution

The fourth proportional to 12,482,387.60, 18,723,581.40 and 8,171,373.20 is: 12,257,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,387.60 : 18,723,581.40 = 8,171,373.20 : x
  2. Step 2: Convert to fraction form
    12,482,387.60/18,723,581.40 = 8,171,373.20/x
  3. Step 3: Cross multiply
    12,482,387.60x = 18,723,581.40 × 8,171,373.20
  4. Step 4: Simplify right side
    12,482,387.60x = 152,997,371,259,978.47
  5. Step 5: Solve for x
    x = 152,997,371,259,978.47/12,482,387.60
  6. Step 6: Final answer
    x = 12,257,059.80

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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.