Home / 138,133,339.40-207,274,658.70-61,468,200.20

Finding the Fourth Proportional to 138,133,339.40, 207,274,658.70 and 61,468,200.20

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Solution

The fourth proportional to 138,133,339.40, 207,274,658.70 and 61,468,200.20 is: 92,235,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,133,339.40 : 207,274,658.70 = 61,468,200.20 : x
  2. Step 2: Convert to fraction form
    138,133,339.40/207,274,658.70 = 61,468,200.20/x
  3. Step 3: Cross multiply
    138,133,339.40x = 207,274,658.70 × 61,468,200.20
  4. Step 4: Simplify right side
    138,133,339.40x = 12,740,800,217,358,272
  5. Step 5: Solve for x
    x = 12,740,800,217,358,272/138,133,339.40
  6. Step 6: Final answer
    x = 92,235,518.76

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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.