Home / 138,133,311.40-207,274,616.70-61,468,172.20

Finding the Fourth Proportional to 138,133,311.40, 207,274,616.70 and 61,468,172.20

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Solution

The fourth proportional to 138,133,311.40, 207,274,616.70 and 61,468,172.20 is: 92,235,476.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,133,311.40 : 207,274,616.70 = 61,468,172.20 : x
  2. Step 2: Convert to fraction form
    138,133,311.40/207,274,616.70 = 61,468,172.20/x
  3. Step 3: Cross multiply
    138,133,311.40x = 207,274,616.70 × 61,468,172.20
  4. Step 4: Simplify right side
    138,133,311.40x = 12,740,791,832,004,596
  5. Step 5: Solve for x
    x = 12,740,791,832,004,596/138,133,311.40
  6. Step 6: Final answer
    x = 92,235,476.75

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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.