Home / 7,168,499.40-10,745,750.70-6,412,672.20

Finding the Fourth Proportional to 7,168,499.40, 10,745,750.70 and 6,412,672.20

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Solution

The fourth proportional to 7,168,499.40, 10,745,750.70 and 6,412,672.20 is: 9,612,747.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168,499.40 : 10,745,750.70 = 6,412,672.20 : x
  2. Step 2: Convert to fraction form
    7,168,499.40/10,745,750.70 = 6,412,672.20/x
  3. Step 3: Cross multiply
    7,168,499.40x = 10,745,750.70 × 6,412,672.20
  4. Step 4: Simplify right side
    7,168,499.40x = 68,908,976,782,020.54
  5. Step 5: Solve for x
    x = 68,908,976,782,020.54/7,168,499.40
  6. Step 6: Final answer
    x = 9,612,747.79

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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.