Home / 21,217,694.72-29,285,575.52-12,964,706.64

Finding the Fourth Proportional to 21,217,694.72, 29,285,575.52 and 12,964,706.64

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Solution

The fourth proportional to 21,217,694.72, 29,285,575.52 and 12,964,706.64 is: 17,894,446.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217,694.72 : 29,285,575.52 = 12,964,706.64 : x
  2. Step 2: Convert to fraction form
    21,217,694.72/29,285,575.52 = 12,964,706.64/x
  3. Step 3: Cross multiply
    21,217,694.72x = 29,285,575.52 × 12,964,706.64
  4. Step 4: Simplify right side
    21,217,694.72x = 379,678,895,400,365.44
  5. Step 5: Solve for x
    x = 379,678,895,400,365.44/21,217,694.72
  6. Step 6: Final answer
    x = 17,894,446.14

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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.