Home / 21,270,823.20-31,899,542.24-6,890,554.56

Finding the Fourth Proportional to 21,270,823.20, 31,899,542.24 and 6,890,554.56

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Solution

The fourth proportional to 21,270,823.20, 31,899,542.24 and 6,890,554.56 is: 10,333,663.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270,823.20 : 31,899,542.24 = 6,890,554.56 : x
  2. Step 2: Convert to fraction form
    21,270,823.20/31,899,542.24 = 6,890,554.56/x
  3. Step 3: Cross multiply
    21,270,823.20x = 31,899,542.24 × 6,890,554.56
  4. Step 4: Simplify right side
    21,270,823.20x = 219,805,536,243,744.59
  5. Step 5: Solve for x
    x = 219,805,536,243,744.59/21,270,823.20
  6. Step 6: Final answer
    x = 10,333,663.83

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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.