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Finding the Fourth Proportional to 20,160,919.70, 30,241,379.56 and 20,160,919.70

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Solution

The fourth proportional to 20,160,919.70, 30,241,379.56 and 20,160,919.70 is: 30,241,379.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,919.70 : 30,241,379.56 = 20,160,919.70 : x
  2. Step 2: Convert to fraction form
    20,160,919.70/30,241,379.56 = 20,160,919.70/x
  3. Step 3: Cross multiply
    20,160,919.70x = 30,241,379.56 × 20,160,919.70
  4. Step 4: Simplify right side
    20,160,919.70x = 609,694,024,926,381.25
  5. Step 5: Solve for x
    x = 609,694,024,926,381.25/20,160,919.70
  6. Step 6: Final answer
    x = 30,241,379.56

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1.5x scale

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.