Home / 39,139,217.06-54,012,562.49-21,498,531.31

Finding the Fourth Proportional to 39,139,217.06, 54,012,562.49 and 21,498,531.31

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Solution

The fourth proportional to 39,139,217.06, 54,012,562.49 and 21,498,531.31 is: 29,668,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139,217.06 : 54,012,562.49 = 21,498,531.31 : x
  2. Step 2: Convert to fraction form
    39,139,217.06/54,012,562.49 = 21,498,531.31/x
  3. Step 3: Cross multiply
    39,139,217.06x = 54,012,562.49 × 21,498,531.31
  4. Step 4: Simplify right side
    39,139,217.06x = 1,161,190,765,824,596.50
  5. Step 5: Solve for x
    x = 1,161,190,765,824,596.50/39,139,217.06
  6. Step 6: Final answer
    x = 29,668,216.51

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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.