Home / 126,372,912.30-189,559,368.45-61,718,193.90

Finding the Fourth Proportional to 126,372,912.30, 189,559,368.45 and 61,718,193.90

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Solution

The fourth proportional to 126,372,912.30, 189,559,368.45 and 61,718,193.90 is: 92,577,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,912.30 : 189,559,368.45 = 61,718,193.90 : x
  2. Step 2: Convert to fraction form
    126,372,912.30/189,559,368.45 = 61,718,193.90/x
  3. Step 3: Cross multiply
    126,372,912.30x = 189,559,368.45 × 61,718,193.90
  4. Step 4: Simplify right side
    126,372,912.30x = 11,699,261,857,558,642
  5. Step 5: Solve for x
    x = 11,699,261,857,558,642/126,372,912.30
  6. Step 6: Final answer
    x = 92,577,290.85

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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.