Home / 11,958,139.20-17,889,969.60-10,378,250.40

Finding the Fourth Proportional to 11,958,139.20, 17,889,969.60 and 10,378,250.40

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Solution

The fourth proportional to 11,958,139.20, 17,889,969.60 and 10,378,250.40 is: 15,526,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958,139.20 : 17,889,969.60 = 10,378,250.40 : x
  2. Step 2: Convert to fraction form
    11,958,139.20/17,889,969.60 = 10,378,250.40/x
  3. Step 3: Cross multiply
    11,958,139.20x = 17,889,969.60 × 10,378,250.40
  4. Step 4: Simplify right side
    11,958,139.20x = 185,666,584,157,187.88
  5. Step 5: Solve for x
    x = 185,666,584,157,187.88/11,958,139.20
  6. Step 6: Final answer
    x = 15,526,377.56

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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.