Home / 82,005,711.25-113,170,243.49-45,338,644.21

Finding the Fourth Proportional to 82,005,711.25, 113,170,243.49 and 45,338,644.21

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Solution

The fourth proportional to 82,005,711.25, 113,170,243.49 and 45,338,644.21 is: 62,568,634.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,005,711.25 : 113,170,243.49 = 45,338,644.21 : x
  2. Step 2: Convert to fraction form
    82,005,711.25/113,170,243.49 = 45,338,644.21/x
  3. Step 3: Cross multiply
    82,005,711.25x = 113,170,243.49 × 45,338,644.21
  4. Step 4: Simplify right side
    82,005,711.25x = 5,130,985,404,752,179
  5. Step 5: Solve for x
    x = 5,130,985,404,752,179/82,005,711.25
  6. Step 6: Final answer
    x = 62,568,634.87

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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.