Home / 10,279,721.48-15,417,847.62-4,815,400.82

Finding the Fourth Proportional to 10,279,721.48, 15,417,847.62 and 4,815,400.82

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Solution

The fourth proportional to 10,279,721.48, 15,417,847.62 and 4,815,400.82 is: 7,222,288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279,721.48 : 15,417,847.62 = 4,815,400.82 : x
  2. Step 2: Convert to fraction form
    10,279,721.48/15,417,847.62 = 4,815,400.82/x
  3. Step 3: Cross multiply
    10,279,721.48x = 15,417,847.62 × 4,815,400.82
  4. Step 4: Simplify right side
    10,279,721.48x = 74,243,116,110,527.66
  5. Step 5: Solve for x
    x = 74,243,116,110,527.66/10,279,721.48
  6. Step 6: Final answer
    x = 7,222,288.68

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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.