Home / 19,561,936.32-29,304,732.96-12,809,880

Finding the Fourth Proportional to 19,561,936.32, 29,304,732.96 and 12,809,880

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Solution

The fourth proportional to 19,561,936.32, 29,304,732.96 and 12,809,880 is: 19,189,823.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561,936.32 : 29,304,732.96 = 12,809,880 : x
  2. Step 2: Convert to fraction form
    19,561,936.32/29,304,732.96 = 12,809,880/x
  3. Step 3: Cross multiply
    19,561,936.32x = 29,304,732.96 × 12,809,880
  4. Step 4: Simplify right side
    19,561,936.32x = 375,390,112,649,644.81
  5. Step 5: Solve for x
    x = 375,390,112,649,644.81/19,561,936.32
  6. Step 6: Final answer
    x = 19,189,823.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.