Home / 15,380,904.33-21,208,746.04-9,872,198.21

Finding the Fourth Proportional to 15,380,904.33, 21,208,746.04 and 9,872,198.21

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Solution

The fourth proportional to 15,380,904.33, 21,208,746.04 and 9,872,198.21 is: 13,612,785.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380,904.33 : 21,208,746.04 = 9,872,198.21 : x
  2. Step 2: Convert to fraction form
    15,380,904.33/21,208,746.04 = 9,872,198.21/x
  3. Step 3: Cross multiply
    15,380,904.33x = 21,208,746.04 × 9,872,198.21
  4. Step 4: Simplify right side
    15,380,904.33x = 209,376,944,720,773.97
  5. Step 5: Solve for x
    x = 209,376,944,720,773.97/15,380,904.33
  6. Step 6: Final answer
    x = 13,612,785.06

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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.