Home / 510,120,489.40-765,180,734.10-165,108,992.20

Finding the Fourth Proportional to 510,120,489.40, 765,180,734.10 and 165,108,992.20

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Solution

The fourth proportional to 510,120,489.40, 765,180,734.10 and 165,108,992.20 is: 247,663,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,120,489.40 : 765,180,734.10 = 165,108,992.20 : x
  2. Step 2: Convert to fraction form
    510,120,489.40/765,180,734.10 = 165,108,992.20/x
  3. Step 3: Cross multiply
    510,120,489.40x = 765,180,734.10 × 165,108,992.20
  4. Step 4: Simplify right side
    510,120,489.40x = 126,338,219,858,107,168
  5. Step 5: Solve for x
    x = 126,338,219,858,107,168/510,120,489.40
  6. Step 6: Final answer
    x = 247,663,488.30

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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.