Home / 129,036,876.80-193,555,315.20-57,373,260.80

Finding the Fourth Proportional to 129,036,876.80, 193,555,315.20 and 57,373,260.80

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Solution

The fourth proportional to 129,036,876.80, 193,555,315.20 and 57,373,260.80 is: 86,059,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,036,876.80 : 193,555,315.20 = 57,373,260.80 : x
  2. Step 2: Convert to fraction form
    129,036,876.80/193,555,315.20 = 57,373,260.80/x
  3. Step 3: Cross multiply
    129,036,876.80x = 193,555,315.20 × 57,373,260.80
  4. Step 4: Simplify right side
    129,036,876.80x = 11,104,899,578,195,802
  5. Step 5: Solve for x
    x = 11,104,899,578,195,802/129,036,876.80
  6. Step 6: Final answer
    x = 86,059,891.20

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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.