Home / 15,339,427.03-21,179,111.07-9,540,815.23

Finding the Fourth Proportional to 15,339,427.03, 21,179,111.07 and 9,540,815.23

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Solution

The fourth proportional to 15,339,427.03, 21,179,111.07 and 9,540,815.23 is: 13,172,981.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339,427.03 : 21,179,111.07 = 9,540,815.23 : x
  2. Step 2: Convert to fraction form
    15,339,427.03/21,179,111.07 = 9,540,815.23/x
  3. Step 3: Cross multiply
    15,339,427.03x = 21,179,111.07 × 9,540,815.23
  4. Step 4: Simplify right side
    15,339,427.03x = 202,065,985,454,517.59
  5. Step 5: Solve for x
    x = 202,065,985,454,517.59/15,339,427.03
  6. Step 6: Final answer
    x = 13,172,981.30

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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.