Home / 15,786,290.56-21,785,000.88-8,542,946.56

Finding the Fourth Proportional to 15,786,290.56, 21,785,000.88 and 8,542,946.56

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Solution

The fourth proportional to 15,786,290.56, 21,785,000.88 and 8,542,946.56 is: 11,789,222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,290.56 : 21,785,000.88 = 8,542,946.56 : x
  2. Step 2: Convert to fraction form
    15,786,290.56/21,785,000.88 = 8,542,946.56/x
  3. Step 3: Cross multiply
    15,786,290.56x = 21,785,000.88 × 8,542,946.56
  4. Step 4: Simplify right side
    15,786,290.56x = 186,108,098,327,392.97
  5. Step 5: Solve for x
    x = 186,108,098,327,392.97/15,786,290.56
  6. Step 6: Final answer
    x = 11,789,222.91

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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.