Home / 126,372,700.80-189,559,051.20-105,965,366.40

Finding the Fourth Proportional to 126,372,700.80, 189,559,051.20 and 105,965,366.40

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Solution

The fourth proportional to 126,372,700.80, 189,559,051.20 and 105,965,366.40 is: 158,948,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,700.80 : 189,559,051.20 = 105,965,366.40 : x
  2. Step 2: Convert to fraction form
    126,372,700.80/189,559,051.20 = 105,965,366.40/x
  3. Step 3: Cross multiply
    126,372,700.80x = 189,559,051.20 × 105,965,366.40
  4. Step 4: Simplify right side
    126,372,700.80x = 20,086,694,314,844,360
  5. Step 5: Solve for x
    x = 20,086,694,314,844,360/126,372,700.80
  6. Step 6: Final answer
    x = 158,948,049.60

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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.