Home / 80,749,690,830.20-121,124,536,245.30-54,301,785,447.80

Finding the Fourth Proportional to 80,749,690,830.20, 121,124,536,245.30 and 54,301,785,447.80

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Solution

The fourth proportional to 80,749,690,830.20, 121,124,536,245.30 and 54,301,785,447.80 is: 81,452,678,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749,690,830.20 : 121,124,536,245.30 = 54,301,785,447.80 : x
  2. Step 2: Convert to fraction form
    80,749,690,830.20/121,124,536,245.30 = 54,301,785,447.80/x
  3. Step 3: Cross multiply
    80,749,690,830.20x = 121,124,536,245.30 × 54,301,785,447.80
  4. Step 4: Simplify right side
    80,749,690,830.20x = 6,577,278,579,656,556,019,712
  5. Step 5: Solve for x
    x = 6,577,278,579,656,556,019,712/80,749,690,830.20
  6. Step 6: Final answer
    x = 81,452,678,171.70

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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.