Home / 20,487,921.60-30,733,437.60-6,109,867.20

Finding the Fourth Proportional to 20,487,921.60, 30,733,437.60 and 6,109,867.20

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Solution

The fourth proportional to 20,487,921.60, 30,733,437.60 and 6,109,867.20 is: 9,165,264.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,921.60 : 30,733,437.60 = 6,109,867.20 : x
  2. Step 2: Convert to fraction form
    20,487,921.60/30,733,437.60 = 6,109,867.20/x
  3. Step 3: Cross multiply
    20,487,921.60x = 30,733,437.60 × 6,109,867.20
  4. Step 4: Simplify right side
    20,487,921.60x = 187,777,222,335,486.75
  5. Step 5: Solve for x
    x = 187,777,222,335,486.75/20,487,921.60
  6. Step 6: Final answer
    x = 9,165,264.59

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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.