Home / 299,530,042.32-413,392,520.88-172,368,107.31

Finding the Fourth Proportional to 299,530,042.32, 413,392,520.88 and 172,368,107.31

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Solution

The fourth proportional to 299,530,042.32, 413,392,520.88 and 172,368,107.31 is: 237,891,617.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,530,042.32 : 413,392,520.88 = 172,368,107.31 : x
  2. Step 2: Convert to fraction form
    299,530,042.32/413,392,520.88 = 172,368,107.31/x
  3. Step 3: Cross multiply
    299,530,042.32x = 413,392,520.88 × 172,368,107.31
  4. Step 4: Simplify right side
    299,530,042.32x = 71,255,686,400,195,256
  5. Step 5: Solve for x
    x = 71,255,686,400,195,256/299,530,042.32
  6. Step 6: Final answer
    x = 237,891,617.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.