Home / 12,239,961.20-18,343,145.48-7,744,189.04

Finding the Fourth Proportional to 12,239,961.20, 18,343,145.48 and 7,744,189.04

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Solution

The fourth proportional to 12,239,961.20, 18,343,145.48 and 7,744,189.04 is: 11,605,656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239,961.20 : 18,343,145.48 = 7,744,189.04 : x
  2. Step 2: Convert to fraction form
    12,239,961.20/18,343,145.48 = 7,744,189.04/x
  3. Step 3: Cross multiply
    12,239,961.20x = 18,343,145.48 × 7,744,189.04
  4. Step 4: Simplify right side
    12,239,961.20x = 142,052,786,185,341.53
  5. Step 5: Solve for x
    x = 142,052,786,185,341.53/12,239,961.20
  6. Step 6: Final answer
    x = 11,605,656.58

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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.