Home / 21,031,286.40-31,522,046.40-8,900,726.40

Finding the Fourth Proportional to 21,031,286.40, 31,522,046.40 and 8,900,726.40

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Solution

The fourth proportional to 21,031,286.40, 31,522,046.40 and 8,900,726.40 is: 13,340,558.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,286.40 : 31,522,046.40 = 8,900,726.40 : x
  2. Step 2: Convert to fraction form
    21,031,286.40/31,522,046.40 = 8,900,726.40/x
  3. Step 3: Cross multiply
    21,031,286.40x = 31,522,046.40 × 8,900,726.40
  4. Step 4: Simplify right side
    21,031,286.40x = 280,569,110,574,504.97
  5. Step 5: Solve for x
    x = 280,569,110,574,504.97/21,031,286.40
  6. Step 6: Final answer
    x = 13,340,558.69

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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.