Home / 472,392,997.80-708,589,496.70-442,159,909.80

Finding the Fourth Proportional to 472,392,997.80, 708,589,496.70 and 442,159,909.80

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Solution

The fourth proportional to 472,392,997.80, 708,589,496.70 and 442,159,909.80 is: 663,239,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,997.80 : 708,589,496.70 = 442,159,909.80 : x
  2. Step 2: Convert to fraction form
    472,392,997.80/708,589,496.70 = 442,159,909.80/x
  3. Step 3: Cross multiply
    472,392,997.80x = 708,589,496.70 × 442,159,909.80
  4. Step 4: Simplify right side
    472,392,997.80x = 313,309,867,946,099,456
  5. Step 5: Solve for x
    x = 313,309,867,946,099,456/472,392,997.80
  6. Step 6: Final answer
    x = 663,239,864.70

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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.