Home / 7,182,793.65-9,912,464.59-3,919,818.57

Finding the Fourth Proportional to 7,182,793.65, 9,912,464.59 and 3,919,818.57

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Solution

The fourth proportional to 7,182,793.65, 9,912,464.59 and 3,919,818.57 is: 5,409,463.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,793.65 : 9,912,464.59 = 3,919,818.57 : x
  2. Step 2: Convert to fraction form
    7,182,793.65/9,912,464.59 = 3,919,818.57/x
  3. Step 3: Cross multiply
    7,182,793.65x = 9,912,464.59 × 3,919,818.57
  4. Step 4: Simplify right side
    7,182,793.65x = 38,855,062,759,508.97
  5. Step 5: Solve for x
    x = 38,855,062,759,508.97/7,182,793.65
  6. Step 6: Final answer
    x = 5,409,463.87

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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.