Home / 12,170,885.14-18,227,346.17-7,042,507.13

Finding the Fourth Proportional to 12,170,885.14, 18,227,346.17 and 7,042,507.13

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Solution

The fourth proportional to 12,170,885.14, 18,227,346.17 and 7,042,507.13 is: 10,546,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170,885.14 : 18,227,346.17 = 7,042,507.13 : x
  2. Step 2: Convert to fraction form
    12,170,885.14/18,227,346.17 = 7,042,507.13/x
  3. Step 3: Cross multiply
    12,170,885.14x = 18,227,346.17 × 7,042,507.13
  4. Step 4: Simplify right side
    12,170,885.14x = 128,366,215,373,559.02
  5. Step 5: Solve for x
    x = 128,366,215,373,559.02/12,170,885.14
  6. Step 6: Final answer
    x = 10,546,990.94

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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.