Home / 15,207,875.52-20,986,066.08-8,681,245.44

Finding the Fourth Proportional to 15,207,875.52, 20,986,066.08 and 8,681,245.44

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Solution

The fourth proportional to 15,207,875.52, 20,986,066.08 and 8,681,245.44 is: 11,979,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207,875.52 : 20,986,066.08 = 8,681,245.44 : x
  2. Step 2: Convert to fraction form
    15,207,875.52/20,986,066.08 = 8,681,245.44/x
  3. Step 3: Cross multiply
    15,207,875.52x = 20,986,066.08 × 8,681,245.44
  4. Step 4: Simplify right side
    15,207,875.52x = 182,185,190,460,538.66
  5. Step 5: Solve for x
    x = 182,185,190,460,538.66/15,207,875.52
  6. Step 6: Final answer
    x = 11,979,660.82

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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.