Home / 472,392,874.20-708,589,311.30-127,334,137.80

Finding the Fourth Proportional to 472,392,874.20, 708,589,311.30 and 127,334,137.80

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Solution

The fourth proportional to 472,392,874.20, 708,589,311.30 and 127,334,137.80 is: 191,001,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,874.20 : 708,589,311.30 = 127,334,137.80 : x
  2. Step 2: Convert to fraction form
    472,392,874.20/708,589,311.30 = 127,334,137.80/x
  3. Step 3: Cross multiply
    472,392,874.20x = 708,589,311.30 × 127,334,137.80
  4. Step 4: Simplify right side
    472,392,874.20x = 90,227,609,008,681,296
  5. Step 5: Solve for x
    x = 90,227,609,008,681,296/472,392,874.20
  6. Step 6: Final answer
    x = 191,001,206.70

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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.