Home / 13,100,173.82-19,654,112.75-3,878,380.78

Finding the Fourth Proportional to 13,100,173.82, 19,654,112.75 and 3,878,380.78

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Solution

The fourth proportional to 13,100,173.82, 19,654,112.75 and 3,878,380.78 is: 5,818,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100,173.82 : 19,654,112.75 = 3,878,380.78 : x
  2. Step 2: Convert to fraction form
    13,100,173.82/19,654,112.75 = 3,878,380.78/x
  3. Step 3: Cross multiply
    13,100,173.82x = 19,654,112.75 × 3,878,380.78
  4. Step 4: Simplify right side
    13,100,173.82x = 76,226,133,048,978.34
  5. Step 5: Solve for x
    x = 76,226,133,048,978.34/13,100,173.82
  6. Step 6: Final answer
    x = 5,818,711.58

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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.