Home / 100,042,036.62-138,072,507.80-57,647,348.43

Finding the Fourth Proportional to 100,042,036.62, 138,072,507.80 and 57,647,348.43

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Solution

The fourth proportional to 100,042,036.62, 138,072,507.80 and 57,647,348.43 is: 79,561,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,042,036.62 : 138,072,507.80 = 57,647,348.43 : x
  2. Step 2: Convert to fraction form
    100,042,036.62/138,072,507.80 = 57,647,348.43/x
  3. Step 3: Cross multiply
    100,042,036.62x = 138,072,507.80 × 57,647,348.43
  4. Step 4: Simplify right side
    100,042,036.62x = 7,959,513,965,462,255
  5. Step 5: Solve for x
    x = 7,959,513,965,462,255/100,042,036.62
  6. Step 6: Final answer
    x = 79,561,694.61

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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.