Home / 5,215,020.30-7,822,530.45-4,949,299.80

Finding the Fourth Proportional to 5,215,020.30, 7,822,530.45 and 4,949,299.80

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Solution

The fourth proportional to 5,215,020.30, 7,822,530.45 and 4,949,299.80 is: 7,423,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,020.30 : 7,822,530.45 = 4,949,299.80 : x
  2. Step 2: Convert to fraction form
    5,215,020.30/7,822,530.45 = 4,949,299.80/x
  3. Step 3: Cross multiply
    5,215,020.30x = 7,822,530.45 × 4,949,299.80
  4. Step 4: Simplify right side
    5,215,020.30x = 38,716,048,391,678.91
  5. Step 5: Solve for x
    x = 38,716,048,391,678.91/5,215,020.30
  6. Step 6: Final answer
    x = 7,423,949.70

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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.