Home / 139,610,968.38-209,144,015.61-108,761,098.56

Finding the Fourth Proportional to 139,610,968.38, 209,144,015.61 and 108,761,098.56

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Solution

The fourth proportional to 139,610,968.38, 209,144,015.61 and 108,761,098.56 is: 162,929,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,610,968.38 : 209,144,015.61 = 108,761,098.56 : x
  2. Step 2: Convert to fraction form
    139,610,968.38/209,144,015.61 = 108,761,098.56/x
  3. Step 3: Cross multiply
    139,610,968.38x = 209,144,015.61 × 108,761,098.56
  4. Step 4: Simplify right side
    139,610,968.38x = 22,746,732,894,993,392
  5. Step 5: Solve for x
    x = 22,746,732,894,993,392/139,610,968.38
  6. Step 6: Final answer
    x = 162,929,411.34

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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.