Home / 472,392,857.40-708,589,286.10-165,645,112.20

Finding the Fourth Proportional to 472,392,857.40, 708,589,286.10 and 165,645,112.20

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Solution

The fourth proportional to 472,392,857.40, 708,589,286.10 and 165,645,112.20 is: 248,467,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,857.40 : 708,589,286.10 = 165,645,112.20 : x
  2. Step 2: Convert to fraction form
    472,392,857.40/708,589,286.10 = 165,645,112.20/x
  3. Step 3: Cross multiply
    472,392,857.40x = 708,589,286.10 × 165,645,112.20
  4. Step 4: Simplify right side
    472,392,857.40x = 117,374,351,799,752,400
  5. Step 5: Solve for x
    x = 117,374,351,799,752,400/472,392,857.40
  6. Step 6: Final answer
    x = 248,467,668.30

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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.