Home / 108,909,977.20-163,364,965.80-84,251,114.80

Finding the Fourth Proportional to 108,909,977.20, 163,364,965.80 and 84,251,114.80

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Solution

The fourth proportional to 108,909,977.20, 163,364,965.80 and 84,251,114.80 is: 126,376,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,909,977.20 : 163,364,965.80 = 84,251,114.80 : x
  2. Step 2: Convert to fraction form
    108,909,977.20/163,364,965.80 = 84,251,114.80/x
  3. Step 3: Cross multiply
    108,909,977.20x = 163,364,965.80 × 84,251,114.80
  4. Step 4: Simplify right side
    108,909,977.20x = 13,763,680,487,913,874
  5. Step 5: Solve for x
    x = 13,763,680,487,913,874/108,909,977.20
  6. Step 6: Final answer
    x = 126,376,672.20

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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.