Home / 20,157,886.80-30,236,939.55-5,011,818.30

Finding the Fourth Proportional to 20,157,886.80, 30,236,939.55 and 5,011,818.30

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Solution

The fourth proportional to 20,157,886.80, 30,236,939.55 and 5,011,818.30 is: 7,517,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,886.80 : 30,236,939.55 = 5,011,818.30 : x
  2. Step 2: Convert to fraction form
    20,157,886.80/30,236,939.55 = 5,011,818.30/x
  3. Step 3: Cross multiply
    20,157,886.80x = 30,236,939.55 × 5,011,818.30
  4. Step 4: Simplify right side
    20,157,886.80x = 151,542,046,972,683.75
  5. Step 5: Solve for x
    x = 151,542,046,972,683.75/20,157,886.80
  6. Step 6: Final answer
    x = 7,517,754.64

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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.