Home / 21,685,107.69-29,925,494.06-11,895,630.95

Finding the Fourth Proportional to 21,685,107.69, 29,925,494.06 and 11,895,630.95

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Solution

The fourth proportional to 21,685,107.69, 29,925,494.06 and 11,895,630.95 is: 16,415,995.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,685,107.69 : 29,925,494.06 = 11,895,630.95 : x
  2. Step 2: Convert to fraction form
    21,685,107.69/29,925,494.06 = 11,895,630.95/x
  3. Step 3: Cross multiply
    21,685,107.69x = 29,925,494.06 × 11,895,630.95
  4. Step 4: Simplify right side
    21,685,107.69x = 355,982,633,125,071.56
  5. Step 5: Solve for x
    x = 355,982,633,125,071.56/21,685,107.69
  6. Step 6: Final answer
    x = 16,415,995.63

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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.