Home / 4,790,869.20-7,149,638.28-4,279,689.36

Finding the Fourth Proportional to 4,790,869.20, 7,149,638.28 and 4,279,689.36

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Solution

The fourth proportional to 4,790,869.20, 7,149,638.28 and 4,279,689.36 is: 6,386,780.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790,869.20 : 7,149,638.28 = 4,279,689.36 : x
  2. Step 2: Convert to fraction form
    4,790,869.20/7,149,638.28 = 4,279,689.36/x
  3. Step 3: Cross multiply
    4,790,869.20x = 7,149,638.28 × 4,279,689.36
  4. Step 4: Simplify right side
    4,790,869.20x = 30,598,230,874,764.70
  5. Step 5: Solve for x
    x = 30,598,230,874,764.70/4,790,869.20
  6. Step 6: Final answer
    x = 6,386,780.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.