Home / 168,531,940.20-252,986,867.10-130,362,666.60

Finding the Fourth Proportional to 168,531,940.20, 252,986,867.10 and 130,362,666.60

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Solution

The fourth proportional to 168,531,940.20, 252,986,867.10 and 130,362,666.60 is: 195,690,161.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,531,940.20 : 252,986,867.10 = 130,362,666.60 : x
  2. Step 2: Convert to fraction form
    168,531,940.20/252,986,867.10 = 130,362,666.60/x
  3. Step 3: Cross multiply
    168,531,940.20x = 252,986,867.10 × 130,362,666.60
  4. Step 4: Simplify right side
    168,531,940.20x = 32,980,042,609,935,808
  5. Step 5: Solve for x
    x = 32,980,042,609,935,808/168,531,940.20
  6. Step 6: Final answer
    x = 195,690,161.58

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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.