Home / 132,815,998.80-199,223,998.20-81,531,723.60

Finding the Fourth Proportional to 132,815,998.80, 199,223,998.20 and 81,531,723.60

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Solution

The fourth proportional to 132,815,998.80, 199,223,998.20 and 81,531,723.60 is: 122,297,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,815,998.80 : 199,223,998.20 = 81,531,723.60 : x
  2. Step 2: Convert to fraction form
    132,815,998.80/199,223,998.20 = 81,531,723.60/x
  3. Step 3: Cross multiply
    132,815,998.80x = 199,223,998.20 × 81,531,723.60
  4. Step 4: Simplify right side
    132,815,998.80x = 16,243,075,955,729,296
  5. Step 5: Solve for x
    x = 16,243,075,955,729,296/132,815,998.80
  6. Step 6: Final answer
    x = 122,297,585.40

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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.