Home / 15,207,879.42-20,986,070.94-8,681,249.34

Finding the Fourth Proportional to 15,207,879.42, 20,986,070.94 and 8,681,249.34

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Solution

The fourth proportional to 15,207,879.42, 20,986,070.94 and 8,681,249.34 is: 11,979,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207,879.42 : 20,986,070.94 = 8,681,249.34 : x
  2. Step 2: Convert to fraction form
    15,207,879.42/20,986,070.94 = 8,681,249.34/x
  3. Step 3: Cross multiply
    15,207,879.42x = 20,986,070.94 × 8,681,249.34
  4. Step 4: Simplify right side
    15,207,879.42x = 182,185,314,497,068.19
  5. Step 5: Solve for x
    x = 182,185,314,497,068.19/15,207,879.42
  6. Step 6: Final answer
    x = 11,979,665.90

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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.