Home / 126,372,396.80-189,558,595.20-103,414,145.60

Finding the Fourth Proportional to 126,372,396.80, 189,558,595.20 and 103,414,145.60

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Solution

The fourth proportional to 126,372,396.80, 189,558,595.20 and 103,414,145.60 is: 155,121,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,396.80 : 189,558,595.20 = 103,414,145.60 : x
  2. Step 2: Convert to fraction form
    126,372,396.80/189,558,595.20 = 103,414,145.60/x
  3. Step 3: Cross multiply
    126,372,396.80x = 189,558,595.20 × 103,414,145.60
  4. Step 4: Simplify right side
    126,372,396.80x = 19,603,040,163,744,260
  5. Step 5: Solve for x
    x = 19,603,040,163,744,260/126,372,396.80
  6. Step 6: Final answer
    x = 155,121,218.40

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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.