Home / 19,928,273,195.60-29,892,409,793.40-12,589,918,917.20

Finding the Fourth Proportional to 19,928,273,195.60, 29,892,409,793.40 and 12,589,918,917.20

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Solution

The fourth proportional to 19,928,273,195.60, 29,892,409,793.40 and 12,589,918,917.20 is: 18,884,878,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,273,195.60 : 29,892,409,793.40 = 12,589,918,917.20 : x
  2. Step 2: Convert to fraction form
    19,928,273,195.60/29,892,409,793.40 = 12,589,918,917.20/x
  3. Step 3: Cross multiply
    19,928,273,195.60x = 29,892,409,793.40 × 12,589,918,917.20
  4. Step 4: Simplify right side
    19,928,273,195.60x = 376,343,015,538,621,218,816
  5. Step 5: Solve for x
    x = 376,343,015,538,621,218,816/19,928,273,195.60
  6. Step 6: Final answer
    x = 18,884,878,375.80

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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.