Home / 80,808,193,876.80-121,212,290,815.20-45,979,676,500.80

Finding the Fourth Proportional to 80,808,193,876.80, 121,212,290,815.20 and 45,979,676,500.80

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Solution

The fourth proportional to 80,808,193,876.80, 121,212,290,815.20 and 45,979,676,500.80 is: 68,969,514,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,808,193,876.80 : 121,212,290,815.20 = 45,979,676,500.80 : x
  2. Step 2: Convert to fraction form
    80,808,193,876.80/121,212,290,815.20 = 45,979,676,500.80/x
  3. Step 3: Cross multiply
    80,808,193,876.80x = 121,212,290,815.20 × 45,979,676,500.80
  4. Step 4: Simplify right side
    80,808,193,876.80x = 5,573,301,919,603,787,563,008
  5. Step 5: Solve for x
    x = 5,573,301,919,603,787,563,008/80,808,193,876.80
  6. Step 6: Final answer
    x = 68,969,514,751.20

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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.