Home / 20,195,368,618.60-30,278,720,204.70-7,768,897,604.20

Finding the Fourth Proportional to 20,195,368,618.60, 30,278,720,204.70 and 7,768,897,604.20

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Solution

The fourth proportional to 20,195,368,618.60, 30,278,720,204.70 and 7,768,897,604.20 is: 11,647,832,792.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195,368,618.60 : 30,278,720,204.70 = 7,768,897,604.20 : x
  2. Step 2: Convert to fraction form
    20,195,368,618.60/30,278,720,204.70 = 7,768,897,604.20/x
  3. Step 3: Cross multiply
    20,195,368,618.60x = 30,278,720,204.70 × 7,768,897,604.20
  4. Step 4: Simplify right side
    20,195,368,618.60x = 235,232,276,856,535,973,888
  5. Step 5: Solve for x
    x = 235,232,276,856,535,973,888/20,195,368,618.60
  6. Step 6: Final answer
    x = 11,647,832,792.71

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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.