Home / 20,419,447.14-28,178,474.40-11,127,097.98

Finding the Fourth Proportional to 20,419,447.14, 28,178,474.40 and 11,127,097.98

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Solution

The fourth proportional to 20,419,447.14, 28,178,474.40 and 11,127,097.98 is: 15,355,197.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,419,447.14 : 28,178,474.40 = 11,127,097.98 : x
  2. Step 2: Convert to fraction form
    20,419,447.14/28,178,474.40 = 11,127,097.98/x
  3. Step 3: Cross multiply
    20,419,447.14x = 28,178,474.40 × 11,127,097.98
  4. Step 4: Simplify right side
    20,419,447.14x = 313,544,645,575,721.69
  5. Step 5: Solve for x
    x = 313,544,645,575,721.69/20,419,447.14
  6. Step 6: Final answer
    x = 15,355,197.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.