Home / 102,668,405.78-141,682,399.92-61,417,036.82

Finding the Fourth Proportional to 102,668,405.78, 141,682,399.92 and 61,417,036.82

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Solution

The fourth proportional to 102,668,405.78, 141,682,399.92 and 61,417,036.82 is: 84,755,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,668,405.78 : 141,682,399.92 = 61,417,036.82 : x
  2. Step 2: Convert to fraction form
    102,668,405.78/141,682,399.92 = 61,417,036.82/x
  3. Step 3: Cross multiply
    102,668,405.78x = 141,682,399.92 × 61,417,036.82
  4. Step 4: Simplify right side
    102,668,405.78x = 8,701,713,172,632,604
  5. Step 5: Solve for x
    x = 8,701,713,172,632,604/102,668,405.78
  6. Step 6: Final answer
    x = 84,755,510.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.