Home / 129,028,933.80-193,543,400.70-115,890,604.20

Finding the Fourth Proportional to 129,028,933.80, 193,543,400.70 and 115,890,604.20

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Solution

The fourth proportional to 129,028,933.80, 193,543,400.70 and 115,890,604.20 is: 173,835,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,028,933.80 : 193,543,400.70 = 115,890,604.20 : x
  2. Step 2: Convert to fraction form
    129,028,933.80/193,543,400.70 = 115,890,604.20/x
  3. Step 3: Cross multiply
    129,028,933.80x = 193,543,400.70 × 115,890,604.20
  4. Step 4: Simplify right side
    129,028,933.80x = 22,429,861,646,045,704
  5. Step 5: Solve for x
    x = 22,429,861,646,045,704/129,028,933.80
  6. Step 6: Final answer
    x = 173,835,906.30

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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.