Home / 7,230,345.78-9,978,060.81-3,967,159.65

Finding the Fourth Proportional to 7,230,345.78, 9,978,060.81 and 3,967,159.65

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Solution

The fourth proportional to 7,230,345.78, 9,978,060.81 and 3,967,159.65 is: 5,474,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230,345.78 : 9,978,060.81 = 3,967,159.65 : x
  2. Step 2: Convert to fraction form
    7,230,345.78/9,978,060.81 = 3,967,159.65/x
  3. Step 3: Cross multiply
    7,230,345.78x = 9,978,060.81 × 3,967,159.65
  4. Step 4: Simplify right side
    7,230,345.78x = 39,584,560,180,788.02
  5. Step 5: Solve for x
    x = 39,584,560,180,788.02/7,230,345.78
  6. Step 6: Final answer
    x = 5,474,781.06

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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.