Home / 12,539,085.68-17,287,919.40-8,121,005.36

Finding the Fourth Proportional to 12,539,085.68, 17,287,919.40 and 8,121,005.36

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Solution

The fourth proportional to 12,539,085.68, 17,287,919.40 and 8,121,005.36 is: 11,196,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539,085.68 : 17,287,919.40 = 8,121,005.36 : x
  2. Step 2: Convert to fraction form
    12,539,085.68/17,287,919.40 = 8,121,005.36/x
  3. Step 3: Cross multiply
    12,539,085.68x = 17,287,919.40 × 8,121,005.36
  4. Step 4: Simplify right side
    12,539,085.68x = 140,395,286,110,647.98
  5. Step 5: Solve for x
    x = 140,395,286,110,647.98/12,539,085.68
  6. Step 6: Final answer
    x = 11,196,612.71

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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.