Home / 20,195,368,639.60-30,278,720,236.20-7,768,897,625.20

Finding the Fourth Proportional to 20,195,368,639.60, 30,278,720,236.20 and 7,768,897,625.20

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Solution

The fourth proportional to 20,195,368,639.60, 30,278,720,236.20 and 7,768,897,625.20 is: 11,647,832,824.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195,368,639.60 : 30,278,720,236.20 = 7,768,897,625.20 : x
  2. Step 2: Convert to fraction form
    20,195,368,639.60/30,278,720,236.20 = 7,768,897,625.20/x
  3. Step 3: Cross multiply
    20,195,368,639.60x = 30,278,720,236.20 × 7,768,897,625.20
  4. Step 4: Simplify right side
    20,195,368,639.60x = 235,232,277,737,109,356,544
  5. Step 5: Solve for x
    x = 235,232,277,737,109,356,544/20,195,368,639.60
  6. Step 6: Final answer
    x = 11,647,832,824.20

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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.