Home / 13,617,519.36-20,424,067.20-6,429,039.36

Finding the Fourth Proportional to 13,617,519.36, 20,424,067.20 and 6,429,039.36

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Solution

The fourth proportional to 13,617,519.36, 20,424,067.20 and 6,429,039.36 is: 9,642,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617,519.36 : 20,424,067.20 = 6,429,039.36 : x
  2. Step 2: Convert to fraction form
    13,617,519.36/20,424,067.20 = 6,429,039.36/x
  3. Step 3: Cross multiply
    13,617,519.36x = 20,424,067.20 × 6,429,039.36
  4. Step 4: Simplify right side
    13,617,519.36x = 131,307,131,920,085
  5. Step 5: Solve for x
    x = 131,307,131,920,085/13,617,519.36
  6. Step 6: Final answer
    x = 9,642,514.80

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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.