Home / 510,120,512.90-765,180,769.35-165,109,015.70

Finding the Fourth Proportional to 510,120,512.90, 765,180,769.35 and 165,109,015.70

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Solution

The fourth proportional to 510,120,512.90, 765,180,769.35 and 165,109,015.70 is: 247,663,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,120,512.90 : 765,180,769.35 = 165,109,015.70 : x
  2. Step 2: Convert to fraction form
    510,120,512.90/765,180,769.35 = 165,109,015.70/x
  3. Step 3: Cross multiply
    510,120,512.90x = 765,180,769.35 × 165,109,015.70
  4. Step 4: Simplify right side
    510,120,512.90x = 126,338,243,659,947,216
  5. Step 5: Solve for x
    x = 126,338,243,659,947,216/510,120,512.90
  6. Step 6: Final answer
    x = 247,663,523.55

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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.