Home / 200,504,879.40-300,757,319.10-131,630,125.80

Finding the Fourth Proportional to 200,504,879.40, 300,757,319.10 and 131,630,125.80

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Solution

The fourth proportional to 200,504,879.40, 300,757,319.10 and 131,630,125.80 is: 197,445,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,504,879.40 : 300,757,319.10 = 131,630,125.80 : x
  2. Step 2: Convert to fraction form
    200,504,879.40/300,757,319.10 = 131,630,125.80/x
  3. Step 3: Cross multiply
    200,504,879.40x = 300,757,319.10 × 131,630,125.80
  4. Step 4: Simplify right side
    200,504,879.40x = 39,588,723,748,403,744
  5. Step 5: Solve for x
    x = 39,588,723,748,403,744/200,504,879.40
  6. Step 6: Final answer
    x = 197,445,188.70

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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.