Home / 78,727,276.32-108,643,687.92-43,919,966.88

Finding the Fourth Proportional to 78,727,276.32, 108,643,687.92 and 43,919,966.88

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Solution

The fourth proportional to 78,727,276.32, 108,643,687.92 and 43,919,966.88 is: 60,609,580.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,727,276.32 : 108,643,687.92 = 43,919,966.88 : x
  2. Step 2: Convert to fraction form
    78,727,276.32/108,643,687.92 = 43,919,966.88/x
  3. Step 3: Cross multiply
    78,727,276.32x = 108,643,687.92 × 43,919,966.88
  4. Step 4: Simplify right side
    78,727,276.32x = 4,771,627,175,167,456
  5. Step 5: Solve for x
    x = 4,771,627,175,167,456/78,727,276.32
  6. Step 6: Final answer
    x = 60,609,580.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.