Home / 7,172,113.97-9,897,228.54-3,908,858.47

Finding the Fourth Proportional to 7,172,113.97, 9,897,228.54 and 3,908,858.47

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Solution

The fourth proportional to 7,172,113.97, 9,897,228.54 and 3,908,858.47 is: 5,394,067.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,113.97 : 9,897,228.54 = 3,908,858.47 : x
  2. Step 2: Convert to fraction form
    7,172,113.97/9,897,228.54 = 3,908,858.47/x
  3. Step 3: Cross multiply
    7,172,113.97x = 9,897,228.54 × 3,908,858.47
  4. Step 4: Simplify right side
    7,172,113.97x = 38,686,865,583,361.66
  5. Step 5: Solve for x
    x = 38,686,865,583,361.66/7,172,113.97
  6. Step 6: Final answer
    x = 5,394,067.32

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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.