Home / 20,129,298.30-30,193,947.45-12,476,547.90

Finding the Fourth Proportional to 20,129,298.30, 30,193,947.45 and 12,476,547.90

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Solution

The fourth proportional to 20,129,298.30, 30,193,947.45 and 12,476,547.90 is: 18,714,821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,298.30 : 30,193,947.45 = 12,476,547.90 : x
  2. Step 2: Convert to fraction form
    20,129,298.30/30,193,947.45 = 12,476,547.90/x
  3. Step 3: Cross multiply
    20,129,298.30x = 30,193,947.45 × 12,476,547.90
  4. Step 4: Simplify right side
    20,129,298.30x = 376,716,231,650,007.88
  5. Step 5: Solve for x
    x = 376,716,231,650,007.88/20,129,298.30
  6. Step 6: Final answer
    x = 18,714,821.85

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Similar ratio
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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.