Home / 12,158,076.59-18,243,400.62-5,339,441.78

Finding the Fourth Proportional to 12,158,076.59, 18,243,400.62 and 5,339,441.78

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Solution

The fourth proportional to 12,158,076.59, 18,243,400.62 and 5,339,441.78 is: 8,011,923.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158,076.59 : 18,243,400.62 = 5,339,441.78 : x
  2. Step 2: Convert to fraction form
    12,158,076.59/18,243,400.62 = 5,339,441.78/x
  3. Step 3: Cross multiply
    12,158,076.59x = 18,243,400.62 × 5,339,441.78
  4. Step 4: Simplify right side
    12,158,076.59x = 97,409,575,388,488.91
  5. Step 5: Solve for x
    x = 97,409,575,388,488.91/12,158,076.59
  6. Step 6: Final answer
    x = 8,011,923.16

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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.