Home / 20,449,879,487.20-30,674,819,230.80-8,021,812,837.60

Finding the Fourth Proportional to 20,449,879,487.20, 30,674,819,230.80 and 8,021,812,837.60

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Solution

The fourth proportional to 20,449,879,487.20, 30,674,819,230.80 and 8,021,812,837.60 is: 12,032,719,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449,879,487.20 : 30,674,819,230.80 = 8,021,812,837.60 : x
  2. Step 2: Convert to fraction form
    20,449,879,487.20/30,674,819,230.80 = 8,021,812,837.60/x
  3. Step 3: Cross multiply
    20,449,879,487.20x = 30,674,819,230.80 × 8,021,812,837.60
  4. Step 4: Simplify right side
    20,449,879,487.20x = 246,067,658,696,690,794,496
  5. Step 5: Solve for x
    x = 246,067,658,696,690,794,496/20,449,879,487.20
  6. Step 6: Final answer
    x = 12,032,719,256.40

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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.