Home / 343,512,043.20-515,268,064.80-275,487,595.20

Finding the Fourth Proportional to 343,512,043.20, 515,268,064.80 and 275,487,595.20

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Solution

The fourth proportional to 343,512,043.20, 515,268,064.80 and 275,487,595.20 is: 413,231,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,512,043.20 : 515,268,064.80 = 275,487,595.20 : x
  2. Step 2: Convert to fraction form
    343,512,043.20/515,268,064.80 = 275,487,595.20/x
  3. Step 3: Cross multiply
    343,512,043.20x = 515,268,064.80 × 275,487,595.20
  4. Step 4: Simplify right side
    343,512,043.20x = 141,949,960,055,109,760
  5. Step 5: Solve for x
    x = 141,949,960,055,109,760/343,512,043.20
  6. Step 6: Final answer
    x = 413,231,392.80

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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.