Home / 83,100,666.78-125,218,222.97-68,286,453.66

Finding the Fourth Proportional to 83,100,666.78, 125,218,222.97 and 68,286,453.66

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Solution

The fourth proportional to 83,100,666.78, 125,218,222.97 and 68,286,453.66 is: 102,895,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,100,666.78 : 125,218,222.97 = 68,286,453.66 : x
  2. Step 2: Convert to fraction form
    83,100,666.78/125,218,222.97 = 68,286,453.66/x
  3. Step 3: Cross multiply
    83,100,666.78x = 125,218,222.97 × 68,286,453.66
  4. Step 4: Simplify right side
    83,100,666.78x = 8,550,708,379,887,020
  5. Step 5: Solve for x
    x = 8,550,708,379,887,020/83,100,666.78
  6. Step 6: Final answer
    x = 102,895,785.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.