Home / 20,680,080.20-31,020,120.30-5,534,011.70

Finding the Fourth Proportional to 20,680,080.20, 31,020,120.30 and 5,534,011.70

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Solution

The fourth proportional to 20,680,080.20, 31,020,120.30 and 5,534,011.70 is: 8,301,017.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680,080.20 : 31,020,120.30 = 5,534,011.70 : x
  2. Step 2: Convert to fraction form
    20,680,080.20/31,020,120.30 = 5,534,011.70/x
  3. Step 3: Cross multiply
    20,680,080.20x = 31,020,120.30 × 5,534,011.70
  4. Step 4: Simplify right side
    20,680,080.20x = 171,665,708,675,607.53
  5. Step 5: Solve for x
    x = 171,665,708,675,607.53/20,680,080.20
  6. Step 6: Final answer
    x = 8,301,017.55

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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.