Home / 7,278,644.30-10,917,966.45-7,231,405.10

Finding the Fourth Proportional to 7,278,644.30, 10,917,966.45 and 7,231,405.10

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Solution

The fourth proportional to 7,278,644.30, 10,917,966.45 and 7,231,405.10 is: 10,847,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278,644.30 : 10,917,966.45 = 7,231,405.10 : x
  2. Step 2: Convert to fraction form
    7,278,644.30/10,917,966.45 = 7,231,405.10/x
  3. Step 3: Cross multiply
    7,278,644.30x = 10,917,966.45 × 7,231,405.10
  4. Step 4: Simplify right side
    7,278,644.30x = 78,952,238,268,158.89
  5. Step 5: Solve for x
    x = 78,952,238,268,158.89/7,278,644.30
  6. Step 6: Final answer
    x = 10,847,107.65

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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.