Home / 7,079,010.72-9,768,723.84-3,981,792.48

Finding the Fourth Proportional to 7,079,010.72, 9,768,723.84 and 3,981,792.48

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Solution

The fourth proportional to 7,079,010.72, 9,768,723.84 and 3,981,792.48 is: 5,494,698.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079,010.72 : 9,768,723.84 = 3,981,792.48 : x
  2. Step 2: Convert to fraction form
    7,079,010.72/9,768,723.84 = 3,981,792.48/x
  3. Step 3: Cross multiply
    7,079,010.72x = 9,768,723.84 × 3,981,792.48
  4. Step 4: Simplify right side
    7,079,010.72x = 38,897,031,125,308.72
  5. Step 5: Solve for x
    x = 38,897,031,125,308.72/7,079,010.72
  6. Step 6: Final answer
    x = 5,494,698.72

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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.