Home / 142,396,334.16-196,499,158.92-80,529,078.48

Finding the Fourth Proportional to 142,396,334.16, 196,499,158.92 and 80,529,078.48

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Solution

The fourth proportional to 142,396,334.16, 196,499,158.92 and 80,529,078.48 is: 111,125,727.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,396,334.16 : 196,499,158.92 = 80,529,078.48 : x
  2. Step 2: Convert to fraction form
    142,396,334.16/196,499,158.92 = 80,529,078.48/x
  3. Step 3: Cross multiply
    142,396,334.16x = 196,499,158.92 × 80,529,078.48
  4. Step 4: Simplify right side
    142,396,334.16x = 15,823,896,189,922,672
  5. Step 5: Solve for x
    x = 15,823,896,189,922,672/142,396,334.16
  6. Step 6: Final answer
    x = 111,125,727.24

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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.