Home / 142,219,612.34-196,278,992.94-80,343,936.70

Finding the Fourth Proportional to 142,219,612.34, 196,278,992.94 and 80,343,936.70

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Solution

The fourth proportional to 142,219,612.34, 196,278,992.94 and 80,343,936.70 is: 110,883,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,219,612.34 : 196,278,992.94 = 80,343,936.70 : x
  2. Step 2: Convert to fraction form
    142,219,612.34/196,278,992.94 = 80,343,936.70/x
  3. Step 3: Cross multiply
    142,219,612.34x = 196,278,992.94 × 80,343,936.70
  4. Step 4: Simplify right side
    142,219,612.34x = 15,769,826,984,311,108
  5. Step 5: Solve for x
    x = 15,769,826,984,311,108/142,219,612.34
  6. Step 6: Final answer
    x = 110,883,630.78

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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.