Home / 129,042,190.80-193,536,386.10-47,199,620.70

Finding the Fourth Proportional to 129,042,190.80, 193,536,386.10 and 47,199,620.70

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Solution

The fourth proportional to 129,042,190.80, 193,536,386.10 and 47,199,620.70 is: 70,789,591.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,042,190.80 : 193,536,386.10 = 47,199,620.70 : x
  2. Step 2: Convert to fraction form
    129,042,190.80/193,536,386.10 = 47,199,620.70/x
  3. Step 3: Cross multiply
    129,042,190.80x = 193,536,386.10 × 47,199,620.70
  4. Step 4: Simplify right side
    129,042,190.80x = 9,134,844,015,568,752
  5. Step 5: Solve for x
    x = 9,134,844,015,568,752/129,042,190.80
  6. Step 6: Final answer
    x = 70,789,591.83

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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.