Home / 259,678,351.10-389,541,472.07-84,802,301.64

Finding the Fourth Proportional to 259,678,351.10, 389,541,472.07 and 84,802,301.64

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Solution

The fourth proportional to 259,678,351.10, 389,541,472.07 and 84,802,301.64 is: 127,211,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,678,351.10 : 389,541,472.07 = 84,802,301.64 : x
  2. Step 2: Convert to fraction form
    259,678,351.10/389,541,472.07 = 84,802,301.64/x
  3. Step 3: Cross multiply
    259,678,351.10x = 389,541,472.07 × 84,802,301.64
  4. Step 4: Simplify right side
    259,678,351.10x = 33,034,013,415,345,764
  5. Step 5: Solve for x
    x = 33,034,013,415,345,764/259,678,351.10
  6. Step 6: Final answer
    x = 127,211,272.23

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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.