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Finding the Fourth Proportional to 108,873,609.80, 163,310,414.70 and 72,593,904.20

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Solution

The fourth proportional to 108,873,609.80, 163,310,414.70 and 72,593,904.20 is: 108,890,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,873,609.80 : 163,310,414.70 = 72,593,904.20 : x
  2. Step 2: Convert to fraction form
    108,873,609.80/163,310,414.70 = 72,593,904.20/x
  3. Step 3: Cross multiply
    108,873,609.80x = 163,310,414.70 × 72,593,904.20
  4. Step 4: Simplify right side
    108,873,609.80x = 11,855,340,599,594,072
  5. Step 5: Solve for x
    x = 11,855,340,599,594,072/108,873,609.80
  6. Step 6: Final answer
    x = 108,890,856.30

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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.