Home / 39,290,821.08-54,222,966.72-21,887,161.62

Finding the Fourth Proportional to 39,290,821.08, 54,222,966.72 and 21,887,161.62

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Solution

The fourth proportional to 39,290,821.08, 54,222,966.72 and 21,887,161.62 is: 30,205,193.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,290,821.08 : 54,222,966.72 = 21,887,161.62 : x
  2. Step 2: Convert to fraction form
    39,290,821.08/54,222,966.72 = 21,887,161.62/x
  3. Step 3: Cross multiply
    39,290,821.08x = 54,222,966.72 × 21,887,161.62
  4. Step 4: Simplify right side
    39,290,821.08x = 1,186,786,836,116,521.25
  5. Step 5: Solve for x
    x = 1,186,786,836,116,521.25/39,290,821.08
  6. Step 6: Final answer
    x = 30,205,193.06

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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.