Home / 142,264,047.60-196,324,714.26-79,542,380.70

Finding the Fourth Proportional to 142,264,047.60, 196,324,714.26 and 79,542,380.70

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Solution

The fourth proportional to 142,264,047.60, 196,324,714.26 and 79,542,380.70 is: 109,768,669.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,264,047.60 : 196,324,714.26 = 79,542,380.70 : x
  2. Step 2: Convert to fraction form
    142,264,047.60/196,324,714.26 = 79,542,380.70/x
  3. Step 3: Cross multiply
    142,264,047.60x = 196,324,714.26 × 79,542,380.70
  4. Step 4: Simplify right side
    142,264,047.60x = 15,616,135,162,487,638
  5. Step 5: Solve for x
    x = 15,616,135,162,487,638/142,264,047.60
  6. Step 6: Final answer
    x = 109,768,669.08

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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.