Home / 12,152,486.40-18,204,235.20-7,589,529.60

Finding the Fourth Proportional to 12,152,486.40, 18,204,235.20 and 7,589,529.60

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Solution

The fourth proportional to 12,152,486.40, 18,204,235.20 and 7,589,529.60 is: 11,368,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152,486.40 : 18,204,235.20 = 7,589,529.60 : x
  2. Step 2: Convert to fraction form
    12,152,486.40/18,204,235.20 = 7,589,529.60/x
  3. Step 3: Cross multiply
    12,152,486.40x = 18,204,235.20 × 7,589,529.60
  4. Step 4: Simplify right side
    12,152,486.40x = 138,161,581,895,761.91
  5. Step 5: Solve for x
    x = 138,161,581,895,761.91/12,152,486.40
  6. Step 6: Final answer
    x = 11,368,997.04

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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.