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Finding the Fourth Proportional to 199,327,813.60, 298,991,720.50 and 199,327,813.60

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Solution

The fourth proportional to 199,327,813.60, 298,991,720.50 and 199,327,813.60 is: 298,991,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,327,813.60 : 298,991,720.50 = 199,327,813.60 : x
  2. Step 2: Convert to fraction form
    199,327,813.60/298,991,720.50 = 199,327,813.60/x
  3. Step 3: Cross multiply
    199,327,813.60x = 298,991,720.50 × 199,327,813.60
  4. Step 4: Simplify right side
    199,327,813.60x = 59,597,365,931,767,296
  5. Step 5: Solve for x
    x = 59,597,365,931,767,296/199,327,813.60
  6. Step 6: Final answer
    x = 298,991,720.50

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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.