Home / 138,521,701.10-207,645,499.65-65,610,328.70

Finding the Fourth Proportional to 138,521,701.10, 207,645,499.65 and 65,610,328.70

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Solution

The fourth proportional to 138,521,701.10, 207,645,499.65 and 65,610,328.70 is: 98,350,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,521,701.10 : 207,645,499.65 = 65,610,328.70 : x
  2. Step 2: Convert to fraction form
    138,521,701.10/207,645,499.65 = 65,610,328.70/x
  3. Step 3: Cross multiply
    138,521,701.10x = 207,645,499.65 × 65,610,328.70
  4. Step 4: Simplify right side
    138,521,701.10x = 13,623,689,485,112,236
  5. Step 5: Solve for x
    x = 13,623,689,485,112,236/138,521,701.10
  6. Step 6: Final answer
    x = 98,350,578.84

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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.