Home / 80,879,278.40-121,318,917.60-50,268,276.80

Finding the Fourth Proportional to 80,879,278.40, 121,318,917.60 and 50,268,276.80

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Solution

The fourth proportional to 80,879,278.40, 121,318,917.60 and 50,268,276.80 is: 75,402,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,879,278.40 : 121,318,917.60 = 50,268,276.80 : x
  2. Step 2: Convert to fraction form
    80,879,278.40/121,318,917.60 = 50,268,276.80/x
  3. Step 3: Cross multiply
    80,879,278.40x = 121,318,917.60 × 50,268,276.80
  4. Step 4: Simplify right side
    80,879,278.40x = 6,098,492,930,993,191
  5. Step 5: Solve for x
    x = 6,098,492,930,993,191/80,879,278.40
  6. Step 6: Final answer
    x = 75,402,415.20

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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.