Home / 12,234,985.60-18,366,475.20-7,189,139.20

Finding the Fourth Proportional to 12,234,985.60, 18,366,475.20 and 7,189,139.20

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Solution

The fourth proportional to 12,234,985.60, 18,366,475.20 and 7,189,139.20 is: 10,791,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,234,985.60 : 18,366,475.20 = 7,189,139.20 : x
  2. Step 2: Convert to fraction form
    12,234,985.60/18,366,475.20 = 7,189,139.20/x
  3. Step 3: Cross multiply
    12,234,985.60x = 18,366,475.20 × 7,189,139.20
  4. Step 4: Simplify right side
    12,234,985.60x = 132,039,146,826,147.84
  5. Step 5: Solve for x
    x = 132,039,146,826,147.84/12,234,985.60
  6. Step 6: Final answer
    x = 10,791,933.16

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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.