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Finding the Fourth Proportional to 199,327,807.60, 298,991,711.40 and 199,327,807.60

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Solution

The fourth proportional to 199,327,807.60, 298,991,711.40 and 199,327,807.60 is: 298,991,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,327,807.60 : 298,991,711.40 = 199,327,807.60 : x
  2. Step 2: Convert to fraction form
    199,327,807.60/298,991,711.40 = 199,327,807.60/x
  3. Step 3: Cross multiply
    199,327,807.60x = 298,991,711.40 × 199,327,807.60
  4. Step 4: Simplify right side
    199,327,807.60x = 59,597,362,323,933,920
  5. Step 5: Solve for x
    x = 59,597,362,323,933,920/199,327,807.60
  6. Step 6: Final answer
    x = 298,991,711.40

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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.