Home / 18,129,419.20-27,225,621.60-9,626,363.20

Finding the Fourth Proportional to 18,129,419.20, 27,225,621.60 and 9,626,363.20

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Solution

The fourth proportional to 18,129,419.20, 27,225,621.60 and 9,626,363.20 is: 14,456,266.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129,419.20 : 27,225,621.60 = 9,626,363.20 : x
  2. Step 2: Convert to fraction form
    18,129,419.20/27,225,621.60 = 9,626,363.20/x
  3. Step 3: Cross multiply
    18,129,419.20x = 27,225,621.60 × 9,626,363.20
  4. Step 4: Simplify right side
    18,129,419.20x = 262,083,721,867,365.12
  5. Step 5: Solve for x
    x = 262,083,721,867,365.12/18,129,419.20
  6. Step 6: Final answer
    x = 14,456,266.85

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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.