Home / 9,341,821.90-12,891,722.25-5,211,853.68

Finding the Fourth Proportional to 9,341,821.90, 12,891,722.25 and 5,211,853.68

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Solution

The fourth proportional to 9,341,821.90, 12,891,722.25 and 5,211,853.68 is: 7,192,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,341,821.90 : 12,891,722.25 = 5,211,853.68 : x
  2. Step 2: Convert to fraction form
    9,341,821.90/12,891,722.25 = 5,211,853.68/x
  3. Step 3: Cross multiply
    9,341,821.90x = 12,891,722.25 × 5,211,853.68
  4. Step 4: Simplify right side
    9,341,821.90x = 67,189,770,050,200.38
  5. Step 5: Solve for x
    x = 67,189,770,050,200.38/9,341,821.90
  6. Step 6: Final answer
    x = 7,192,362.56

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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.