Home / 21,175,470.45-29,228,408.48-12,476,453.85

Finding the Fourth Proportional to 21,175,470.45, 29,228,408.48 and 12,476,453.85

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Solution

The fourth proportional to 21,175,470.45, 29,228,408.48 and 12,476,453.85 is: 17,221,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175,470.45 : 29,228,408.48 = 12,476,453.85 : x
  2. Step 2: Convert to fraction form
    21,175,470.45/29,228,408.48 = 12,476,453.85/x
  3. Step 3: Cross multiply
    21,175,470.45x = 29,228,408.48 × 12,476,453.85
  4. Step 4: Simplify right side
    21,175,470.45x = 364,666,889,540,859.81
  5. Step 5: Solve for x
    x = 364,666,889,540,859.81/21,175,470.45
  6. Step 6: Final answer
    x = 17,221,194.23

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1.5x scale

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.