Home / 12,697,142.24-19,040,839.68-5,405,979.44

Finding the Fourth Proportional to 12,697,142.24, 19,040,839.68 and 5,405,979.44

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Solution

The fourth proportional to 12,697,142.24, 19,040,839.68 and 5,405,979.44 is: 8,106,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697,142.24 : 19,040,839.68 = 5,405,979.44 : x
  2. Step 2: Convert to fraction form
    12,697,142.24/19,040,839.68 = 5,405,979.44/x
  3. Step 3: Cross multiply
    12,697,142.24x = 19,040,839.68 × 5,405,979.44
  4. Step 4: Simplify right side
    12,697,142.24x = 102,934,387,830,416.19
  5. Step 5: Solve for x
    x = 102,934,387,830,416.19/12,697,142.24
  6. Step 6: Final answer
    x = 8,106,894.13

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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.