Home / 80,942,114.40-121,413,171.60-55,114,081.80

Finding the Fourth Proportional to 80,942,114.40, 121,413,171.60 and 55,114,081.80

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Solution

The fourth proportional to 80,942,114.40, 121,413,171.60 and 55,114,081.80 is: 82,671,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,942,114.40 : 121,413,171.60 = 55,114,081.80 : x
  2. Step 2: Convert to fraction form
    80,942,114.40/121,413,171.60 = 55,114,081.80/x
  3. Step 3: Cross multiply
    80,942,114.40x = 121,413,171.60 × 55,114,081.80
  4. Step 4: Simplify right side
    80,942,114.40x = 6,691,575,471,159,836
  5. Step 5: Solve for x
    x = 6,691,575,471,159,836/80,942,114.40
  6. Step 6: Final answer
    x = 82,671,122.70

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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.