Home / 80,916,911.60-121,375,367.40-80,413,026.80

Finding the Fourth Proportional to 80,916,911.60, 121,375,367.40 and 80,413,026.80

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Solution

The fourth proportional to 80,916,911.60, 121,375,367.40 and 80,413,026.80 is: 120,619,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,916,911.60 : 121,375,367.40 = 80,413,026.80 : x
  2. Step 2: Convert to fraction form
    80,916,911.60/121,375,367.40 = 80,413,026.80/x
  3. Step 3: Cross multiply
    80,916,911.60x = 121,375,367.40 × 80,413,026.80
  4. Step 4: Simplify right side
    80,916,911.60x = 9,760,160,671,596,046
  5. Step 5: Solve for x
    x = 9,760,160,671,596,046/80,916,911.60
  6. Step 6: Final answer
    x = 120,619,540.20

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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.