Home / 142,201,143.20-196,253,538-80,325,467.48

Finding the Fourth Proportional to 142,201,143.20, 196,253,538 and 80,325,467.48

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Solution

The fourth proportional to 142,201,143.20, 196,253,538 and 80,325,467.48 is: 110,858,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,201,143.20 : 196,253,538 = 80,325,467.48 : x
  2. Step 2: Convert to fraction form
    142,201,143.20/196,253,538 = 80,325,467.48/x
  3. Step 3: Cross multiply
    142,201,143.20x = 196,253,538 × 80,325,467.48
  4. Step 4: Simplify right side
    142,201,143.20x = 15,764,157,184,453,946
  5. Step 5: Solve for x
    x = 15,764,157,184,453,946/142,201,143.20
  6. Step 6: Final answer
    x = 110,858,160.70

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1.5x scale

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.