Home / 20,850,819.30-31,279,181.40-6,472,387.80

Finding the Fourth Proportional to 20,850,819.30, 31,279,181.40 and 6,472,387.80

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Solution

The fourth proportional to 20,850,819.30, 31,279,181.40 and 6,472,387.80 is: 9,709,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850,819.30 : 31,279,181.40 = 6,472,387.80 : x
  2. Step 2: Convert to fraction form
    20,850,819.30/31,279,181.40 = 6,472,387.80/x
  3. Step 3: Cross multiply
    20,850,819.30x = 31,279,181.40 × 6,472,387.80
  4. Step 4: Simplify right side
    20,850,819.30x = 202,450,992,087,346.91
  5. Step 5: Solve for x
    x = 202,450,992,087,346.91/20,850,819.30
  6. Step 6: Final answer
    x = 9,709,498.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.