Home / 168,506,998.80-252,760,498.20-82,200,980.40

Finding the Fourth Proportional to 168,506,998.80, 252,760,498.20 and 82,200,980.40

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Solution

The fourth proportional to 168,506,998.80, 252,760,498.20 and 82,200,980.40 is: 123,301,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,506,998.80 : 252,760,498.20 = 82,200,980.40 : x
  2. Step 2: Convert to fraction form
    168,506,998.80/252,760,498.20 = 82,200,980.40/x
  3. Step 3: Cross multiply
    168,506,998.80x = 252,760,498.20 × 82,200,980.40
  4. Step 4: Simplify right side
    168,506,998.80x = 20,777,160,758,432,436
  5. Step 5: Solve for x
    x = 20,777,160,758,432,436/168,506,998.80
  6. Step 6: Final answer
    x = 123,301,470.60

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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.