Home / 165,192,432.80-247,788,649.20-138,318,576.80

Finding the Fourth Proportional to 165,192,432.80, 247,788,649.20 and 138,318,576.80

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Solution

The fourth proportional to 165,192,432.80, 247,788,649.20 and 138,318,576.80 is: 207,477,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,192,432.80 : 247,788,649.20 = 138,318,576.80 : x
  2. Step 2: Convert to fraction form
    165,192,432.80/247,788,649.20 = 138,318,576.80/x
  3. Step 3: Cross multiply
    165,192,432.80x = 247,788,649.20 × 138,318,576.80
  4. Step 4: Simplify right side
    165,192,432.80x = 34,273,773,304,538,460
  5. Step 5: Solve for x
    x = 34,273,773,304,538,460/165,192,432.80
  6. Step 6: Final answer
    x = 207,477,865.20

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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.