Home / 7,978,515.30-11,976,630.30-4,949,301.60

Finding the Fourth Proportional to 7,978,515.30, 11,976,630.30 and 4,949,301.60

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Solution

The fourth proportional to 7,978,515.30, 11,976,630.30 and 4,949,301.60 is: 7,429,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,515.30 : 11,976,630.30 = 4,949,301.60 : x
  2. Step 2: Convert to fraction form
    7,978,515.30/11,976,630.30 = 4,949,301.60/x
  3. Step 3: Cross multiply
    7,978,515.30x = 11,976,630.30 × 4,949,301.60
  4. Step 4: Simplify right side
    7,978,515.30x = 59,275,955,506,398.48
  5. Step 5: Solve for x
    x = 59,275,955,506,398.48/7,978,515.30
  6. Step 6: Final answer
    x = 7,429,446.87

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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.