Home / 139,610,969.38-209,144,017.11-108,761,099.56

Finding the Fourth Proportional to 139,610,969.38, 209,144,017.11 and 108,761,099.56

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Solution

The fourth proportional to 139,610,969.38, 209,144,017.11 and 108,761,099.56 is: 162,929,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,610,969.38 : 209,144,017.11 = 108,761,099.56 : x
  2. Step 2: Convert to fraction form
    139,610,969.38/209,144,017.11 = 108,761,099.56/x
  3. Step 3: Cross multiply
    139,610,969.38x = 209,144,017.11 × 108,761,099.56
  4. Step 4: Simplify right side
    139,610,969.38x = 22,746,733,267,279,056
  5. Step 5: Solve for x
    x = 22,746,733,267,279,056/139,610,969.38
  6. Step 6: Final answer
    x = 162,929,412.84

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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.