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Finding the Fourth Proportional to 63,745,847.80, 95,618,771.70 and 20,645,982.70

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Solution

The fourth proportional to 63,745,847.80, 95,618,771.70 and 20,645,982.70 is: 30,968,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,745,847.80 : 95,618,771.70 = 20,645,982.70 : x
  2. Step 2: Convert to fraction form
    63,745,847.80/95,618,771.70 = 20,645,982.70/x
  3. Step 3: Cross multiply
    63,745,847.80x = 95,618,771.70 × 20,645,982.70
  4. Step 4: Simplify right side
    63,745,847.80x = 1,974,143,506,313,449.50
  5. Step 5: Solve for x
    x = 1,974,143,506,313,449.50/63,745,847.80
  6. Step 6: Final answer
    x = 30,968,974.05

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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.