Home / 12,521,768.68-17,280,467.94-7,015,375.72

Finding the Fourth Proportional to 12,521,768.68, 17,280,467.94 and 7,015,375.72

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Solution

The fourth proportional to 12,521,768.68, 17,280,467.94 and 7,015,375.72 is: 9,681,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521,768.68 : 17,280,467.94 = 7,015,375.72 : x
  2. Step 2: Convert to fraction form
    12,521,768.68/17,280,467.94 = 7,015,375.72/x
  3. Step 3: Cross multiply
    12,521,768.68x = 17,280,467.94 × 7,015,375.72
  4. Step 4: Simplify right side
    12,521,768.68x = 121,228,975,216,514.42
  5. Step 5: Solve for x
    x = 121,228,975,216,514.42/12,521,768.68
  6. Step 6: Final answer
    x = 9,681,457.81

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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.