Home / 138,023,356.60-206,859,200.10-73,358,140.60

Finding the Fourth Proportional to 138,023,356.60, 206,859,200.10 and 73,358,140.60

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Solution

The fourth proportional to 138,023,356.60, 206,859,200.10 and 73,358,140.60 is: 109,943,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,023,356.60 : 206,859,200.10 = 73,358,140.60 : x
  2. Step 2: Convert to fraction form
    138,023,356.60/206,859,200.10 = 73,358,140.60/x
  3. Step 3: Cross multiply
    138,023,356.60x = 206,859,200.10 × 73,358,140.60
  4. Step 4: Simplify right side
    138,023,356.60x = 15,174,806,285,339,332
  5. Step 5: Solve for x
    x = 15,174,806,285,339,332/138,023,356.60
  6. Step 6: Final answer
    x = 109,943,756.33

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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.