Home / 12,124,909.20-18,187,363.80-11,005,165.20

Finding the Fourth Proportional to 12,124,909.20, 18,187,363.80 and 11,005,165.20

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Solution

The fourth proportional to 12,124,909.20, 18,187,363.80 and 11,005,165.20 is: 16,507,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124,909.20 : 18,187,363.80 = 11,005,165.20 : x
  2. Step 2: Convert to fraction form
    12,124,909.20/18,187,363.80 = 11,005,165.20/x
  3. Step 3: Cross multiply
    12,124,909.20x = 18,187,363.80 × 11,005,165.20
  4. Step 4: Simplify right side
    12,124,909.20x = 200,154,943,171,499.75
  5. Step 5: Solve for x
    x = 200,154,943,171,499.75/12,124,909.20
  6. Step 6: Final answer
    x = 16,507,747.80

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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.