Home / 21,897,215.46-30,217,974.21-12,606,606.18

Finding the Fourth Proportional to 21,897,215.46, 30,217,974.21 and 12,606,606.18

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Solution

The fourth proportional to 21,897,215.46, 30,217,974.21 and 12,606,606.18 is: 17,397,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897,215.46 : 30,217,974.21 = 12,606,606.18 : x
  2. Step 2: Convert to fraction form
    21,897,215.46/30,217,974.21 = 12,606,606.18/x
  3. Step 3: Cross multiply
    21,897,215.46x = 30,217,974.21 × 12,606,606.18
  4. Step 4: Simplify right side
    21,897,215.46x = 380,946,100,422,866.62
  5. Step 5: Solve for x
    x = 380,946,100,422,866.62/21,897,215.46
  6. Step 6: Final answer
    x = 17,397,011.10

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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.