Home / 21,204,783.15-31,797,843.53-8,421,039.15

Finding the Fourth Proportional to 21,204,783.15, 31,797,843.53 and 8,421,039.15

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Solution

The fourth proportional to 21,204,783.15, 31,797,843.53 and 8,421,039.15 is: 12,627,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204,783.15 : 31,797,843.53 = 8,421,039.15 : x
  2. Step 2: Convert to fraction form
    21,204,783.15/31,797,843.53 = 8,421,039.15/x
  3. Step 3: Cross multiply
    21,204,783.15x = 31,797,843.53 × 8,421,039.15
  4. Step 4: Simplify right side
    21,204,783.15x = 267,770,885,209,599
  5. Step 5: Solve for x
    x = 267,770,885,209,599/21,204,783.15
  6. Step 6: Final answer
    x = 12,627,853.03

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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.