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Finding the Fourth Proportional to 165,889,333.80, 248,834,000.70 and 80,954,677.80

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Solution

The fourth proportional to 165,889,333.80, 248,834,000.70 and 80,954,677.80 is: 121,432,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,889,333.80 : 248,834,000.70 = 80,954,677.80 : x
  2. Step 2: Convert to fraction form
    165,889,333.80/248,834,000.70 = 80,954,677.80/x
  3. Step 3: Cross multiply
    165,889,333.80x = 248,834,000.70 × 80,954,677.80
  4. Step 4: Simplify right side
    165,889,333.80x = 20,144,276,352,353,472
  5. Step 5: Solve for x
    x = 20,144,276,352,353,472/165,889,333.80
  6. Step 6: Final answer
    x = 121,432,016.70

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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.