Home / 39,290,772.33-54,222,899.45-21,887,112.87

Finding the Fourth Proportional to 39,290,772.33, 54,222,899.45 and 21,887,112.87

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Solution

The fourth proportional to 39,290,772.33, 54,222,899.45 and 21,887,112.87 is: 30,205,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,290,772.33 : 54,222,899.45 = 21,887,112.87 : x
  2. Step 2: Convert to fraction form
    39,290,772.33/54,222,899.45 = 21,887,112.87/x
  3. Step 3: Cross multiply
    39,290,772.33x = 54,222,899.45 × 21,887,112.87
  4. Step 4: Simplify right side
    39,290,772.33x = 1,186,782,720,291,375.50
  5. Step 5: Solve for x
    x = 1,186,782,720,291,375.50/39,290,772.33
  6. Step 6: Final answer
    x = 30,205,125.78

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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.