Home / 28,204,498.01-38,907,882.66-18,420,669.20

Finding the Fourth Proportional to 28,204,498.01, 38,907,882.66 and 18,420,669.20

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Solution

The fourth proportional to 28,204,498.01, 38,907,882.66 and 18,420,669.20 is: 25,411,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204,498.01 : 38,907,882.66 = 18,420,669.20 : x
  2. Step 2: Convert to fraction form
    28,204,498.01/38,907,882.66 = 18,420,669.20/x
  3. Step 3: Cross multiply
    28,204,498.01x = 38,907,882.66 × 18,420,669.20
  4. Step 4: Simplify right side
    28,204,498.01x = 716,709,235,752,276
  5. Step 5: Solve for x
    x = 716,709,235,752,276/28,204,498.01
  6. Step 6: Final answer
    x = 25,411,167.95

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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.