Home / 168,439,808.80-252,659,713.20-82,133,790.40

Finding the Fourth Proportional to 168,439,808.80, 252,659,713.20 and 82,133,790.40

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Solution

The fourth proportional to 168,439,808.80, 252,659,713.20 and 82,133,790.40 is: 123,200,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,439,808.80 : 252,659,713.20 = 82,133,790.40 : x
  2. Step 2: Convert to fraction form
    168,439,808.80/252,659,713.20 = 82,133,790.40/x
  3. Step 3: Cross multiply
    168,439,808.80x = 252,659,713.20 × 82,133,790.40
  4. Step 4: Simplify right side
    168,439,808.80x = 20,751,899,926,492,912
  5. Step 5: Solve for x
    x = 20,751,899,926,492,912/168,439,808.80
  6. Step 6: Final answer
    x = 123,200,685.60

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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.