Home / 100,042,037.12-138,072,508.49-57,647,348.93

Finding the Fourth Proportional to 100,042,037.12, 138,072,508.49 and 57,647,348.93

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Solution

The fourth proportional to 100,042,037.12, 138,072,508.49 and 57,647,348.93 is: 79,561,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,042,037.12 : 138,072,508.49 = 57,647,348.93 : x
  2. Step 2: Convert to fraction form
    100,042,037.12/138,072,508.49 = 57,647,348.93/x
  3. Step 3: Cross multiply
    100,042,037.12x = 138,072,508.49 × 57,647,348.93
  4. Step 4: Simplify right side
    100,042,037.12x = 7,959,514,074,275,181
  5. Step 5: Solve for x
    x = 7,959,514,074,275,181/100,042,037.12
  6. Step 6: Final answer
    x = 79,561,695.30

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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.