Home / 472,392,686.20-708,589,029.30-268,319,342.20

Finding the Fourth Proportional to 472,392,686.20, 708,589,029.30 and 268,319,342.20

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Solution

The fourth proportional to 472,392,686.20, 708,589,029.30 and 268,319,342.20 is: 402,479,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,686.20 : 708,589,029.30 = 268,319,342.20 : x
  2. Step 2: Convert to fraction form
    472,392,686.20/708,589,029.30 = 268,319,342.20/x
  3. Step 3: Cross multiply
    472,392,686.20x = 708,589,029.30 × 268,319,342.20
  4. Step 4: Simplify right side
    472,392,686.20x = 190,128,142,231,912,512
  5. Step 5: Solve for x
    x = 190,128,142,231,912,512/472,392,686.20
  6. Step 6: Final answer
    x = 402,479,013.30

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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.