Home / 28,481,352.47-39,304,386.81-15,428,611.37

Finding the Fourth Proportional to 28,481,352.47, 39,304,386.81 and 15,428,611.37

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Solution

The fourth proportional to 28,481,352.47, 39,304,386.81 and 15,428,611.37 is: 21,291,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481,352.47 : 39,304,386.81 = 15,428,611.37 : x
  2. Step 2: Convert to fraction form
    28,481,352.47/39,304,386.81 = 15,428,611.37/x
  3. Step 3: Cross multiply
    28,481,352.47x = 39,304,386.81 × 15,428,611.37
  4. Step 4: Simplify right side
    28,481,352.47x = 606,412,109,227,644
  5. Step 5: Solve for x
    x = 606,412,109,227,644/28,481,352.47
  6. Step 6: Final answer
    x = 21,291,548.91

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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.