Home / 20,416,729,138.40-30,625,093,707.60-7,990,929,970.40

Finding the Fourth Proportional to 20,416,729,138.40, 30,625,093,707.60 and 7,990,929,970.40

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Solution

The fourth proportional to 20,416,729,138.40, 30,625,093,707.60 and 7,990,929,970.40 is: 11,986,394,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416,729,138.40 : 30,625,093,707.60 = 7,990,929,970.40 : x
  2. Step 2: Convert to fraction form
    20,416,729,138.40/30,625,093,707.60 = 7,990,929,970.40/x
  3. Step 3: Cross multiply
    20,416,729,138.40x = 30,625,093,707.60 × 7,990,929,970.40
  4. Step 4: Simplify right side
    20,416,729,138.40x = 244,722,979,154,369,282,048
  5. Step 5: Solve for x
    x = 244,722,979,154,369,282,048/20,416,729,138.40
  6. Step 6: Final answer
    x = 11,986,394,955.60

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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.