Home / 12,155,379.30-18,230,444.55-5,331,939.30

Finding the Fourth Proportional to 12,155,379.30, 18,230,444.55 and 5,331,939.30

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Solution

The fourth proportional to 12,155,379.30, 18,230,444.55 and 5,331,939.30 is: 7,996,757.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155,379.30 : 18,230,444.55 = 5,331,939.30 : x
  2. Step 2: Convert to fraction form
    12,155,379.30/18,230,444.55 = 5,331,939.30/x
  3. Step 3: Cross multiply
    12,155,379.30x = 18,230,444.55 × 5,331,939.30
  4. Step 4: Simplify right side
    12,155,379.30x = 97,203,623,752,615.81
  5. Step 5: Solve for x
    x = 97,203,623,752,615.81/12,155,379.30
  6. Step 6: Final answer
    x = 7,996,757.76

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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.