Home / 20,415,005.25-28,172,623.41-11,122,549.17

Finding the Fourth Proportional to 20,415,005.25, 28,172,623.41 and 11,122,549.17

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Solution

The fourth proportional to 20,415,005.25, 28,172,623.41 and 11,122,549.17 is: 15,349,072.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,005.25 : 28,172,623.41 = 11,122,549.17 : x
  2. Step 2: Convert to fraction form
    20,415,005.25/28,172,623.41 = 11,122,549.17/x
  3. Step 3: Cross multiply
    20,415,005.25x = 28,172,623.41 × 11,122,549.17
  4. Step 4: Simplify right side
    20,415,005.25x = 313,351,389,125,618.06
  5. Step 5: Solve for x
    x = 313,351,389,125,618.06/20,415,005.25
  6. Step 6: Final answer
    x = 15,349,072.18

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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.