Home / 193,965,421.80-290,948,132.70-172,920,358.20

Finding the Fourth Proportional to 193,965,421.80, 290,948,132.70 and 172,920,358.20

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Solution

The fourth proportional to 193,965,421.80, 290,948,132.70 and 172,920,358.20 is: 259,380,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,965,421.80 : 290,948,132.70 = 172,920,358.20 : x
  2. Step 2: Convert to fraction form
    193,965,421.80/290,948,132.70 = 172,920,358.20/x
  3. Step 3: Cross multiply
    193,965,421.80x = 290,948,132.70 × 172,920,358.20
  4. Step 4: Simplify right side
    193,965,421.80x = 50,310,855,324,105,128
  5. Step 5: Solve for x
    x = 50,310,855,324,105,128/193,965,421.80
  6. Step 6: Final answer
    x = 259,380,537.30

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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.