Home / 10,458,439.20-15,687,658.80-7,057,216.80

Finding the Fourth Proportional to 10,458,439.20, 15,687,658.80 and 7,057,216.80

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Solution

The fourth proportional to 10,458,439.20, 15,687,658.80 and 7,057,216.80 is: 10,585,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458,439.20 : 15,687,658.80 = 7,057,216.80 : x
  2. Step 2: Convert to fraction form
    10,458,439.20/15,687,658.80 = 7,057,216.80/x
  3. Step 3: Cross multiply
    10,458,439.20x = 15,687,658.80 × 7,057,216.80
  4. Step 4: Simplify right side
    10,458,439.20x = 110,711,209,236,027.84
  5. Step 5: Solve for x
    x = 110,711,209,236,027.84/10,458,439.20
  6. Step 6: Final answer
    x = 10,585,825.20

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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.