Home / 18,693,635.40-28,032,158.70-8,591,056.20

Finding the Fourth Proportional to 18,693,635.40, 28,032,158.70 and 8,591,056.20

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Solution

The fourth proportional to 18,693,635.40, 28,032,158.70 and 8,591,056.20 is: 12,882,772.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,635.40 : 28,032,158.70 = 8,591,056.20 : x
  2. Step 2: Convert to fraction form
    18,693,635.40/28,032,158.70 = 8,591,056.20/x
  3. Step 3: Cross multiply
    18,693,635.40x = 28,032,158.70 × 8,591,056.20
  4. Step 4: Simplify right side
    18,693,635.40x = 240,825,850,799,018.91
  5. Step 5: Solve for x
    x = 240,825,850,799,018.91/18,693,635.40
  6. Step 6: Final answer
    x = 12,882,772.43

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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.