Home / 68,375,500.80-102,563,251.20-20,506,444.80

Finding the Fourth Proportional to 68,375,500.80, 102,563,251.20 and 20,506,444.80

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Solution

The fourth proportional to 68,375,500.80, 102,563,251.20 and 20,506,444.80 is: 30,759,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375,500.80 : 102,563,251.20 = 20,506,444.80 : x
  2. Step 2: Convert to fraction form
    68,375,500.80/102,563,251.20 = 20,506,444.80/x
  3. Step 3: Cross multiply
    68,375,500.80x = 102,563,251.20 × 20,506,444.80
  4. Step 4: Simplify right side
    68,375,500.80x = 2,103,207,649,241,334
  5. Step 5: Solve for x
    x = 2,103,207,649,241,334/68,375,500.80
  6. Step 6: Final answer
    x = 30,759,667.20

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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.