Home / 843,669,385.20-1,265,504,077.80-230,315,612.40

Finding the Fourth Proportional to 843,669,385.20, 1,265,504,077.80 and 230,315,612.40

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Solution

The fourth proportional to 843,669,385.20, 1,265,504,077.80 and 230,315,612.40 is: 345,473,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,669,385.20 : 1,265,504,077.80 = 230,315,612.40 : x
  2. Step 2: Convert to fraction form
    843,669,385.20/1,265,504,077.80 = 230,315,612.40/x
  3. Step 3: Cross multiply
    843,669,385.20x = 1,265,504,077.80 × 230,315,612.40
  4. Step 4: Simplify right side
    843,669,385.20x = 291,465,346,673,204,224
  5. Step 5: Solve for x
    x = 291,465,346,673,204,224/843,669,385.20
  6. Step 6: Final answer
    x = 345,473,418.60

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Double scale
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Similar ratio
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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.