Home / 138,521,699.60-207,645,497.40-65,610,327.20

Finding the Fourth Proportional to 138,521,699.60, 207,645,497.40 and 65,610,327.20

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Solution

The fourth proportional to 138,521,699.60, 207,645,497.40 and 65,610,327.20 is: 98,350,576.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,521,699.60 : 207,645,497.40 = 65,610,327.20 : x
  2. Step 2: Convert to fraction form
    138,521,699.60/207,645,497.40 = 65,610,327.20/x
  3. Step 3: Cross multiply
    138,521,699.60x = 207,645,497.40 × 65,610,327.20
  4. Step 4: Simplify right side
    138,521,699.60x = 13,623,689,026,020,750
  5. Step 5: Solve for x
    x = 13,623,689,026,020,750/138,521,699.60
  6. Step 6: Final answer
    x = 98,350,576.59

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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.