Home / 126,372,912.30-189,559,368.45-105,965,577.90

Finding the Fourth Proportional to 126,372,912.30, 189,559,368.45 and 105,965,577.90

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Solution

The fourth proportional to 126,372,912.30, 189,559,368.45 and 105,965,577.90 is: 158,948,366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,912.30 : 189,559,368.45 = 105,965,577.90 : x
  2. Step 2: Convert to fraction form
    126,372,912.30/189,559,368.45 = 105,965,577.90/x
  3. Step 3: Cross multiply
    126,372,912.30x = 189,559,368.45 × 105,965,577.90
  4. Step 4: Simplify right side
    126,372,912.30x = 20,086,768,024,163,276
  5. Step 5: Solve for x
    x = 20,086,768,024,163,276/126,372,912.30
  6. Step 6: Final answer
    x = 158,948,366.85

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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.