Home / 80,877,902.40-121,316,853.60-50,266,900.80

Finding the Fourth Proportional to 80,877,902.40, 121,316,853.60 and 50,266,900.80

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Solution

The fourth proportional to 80,877,902.40, 121,316,853.60 and 50,266,900.80 is: 75,400,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,877,902.40 : 121,316,853.60 = 50,266,900.80 : x
  2. Step 2: Convert to fraction form
    80,877,902.40/121,316,853.60 = 50,266,900.80/x
  3. Step 3: Cross multiply
    80,877,902.40x = 121,316,853.60 × 50,266,900.80
  4. Step 4: Simplify right side
    80,877,902.40x = 6,098,222,245,279,322
  5. Step 5: Solve for x
    x = 6,098,222,245,279,322/80,877,902.40
  6. Step 6: Final answer
    x = 75,400,351.20

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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.