Home / 28,040,064.78-38,695,342.95-15,481,143.72

Finding the Fourth Proportional to 28,040,064.78, 38,695,342.95 and 15,481,143.72

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Solution

The fourth proportional to 28,040,064.78, 38,695,342.95 and 15,481,143.72 is: 21,364,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,064.78 : 38,695,342.95 = 15,481,143.72 : x
  2. Step 2: Convert to fraction form
    28,040,064.78/38,695,342.95 = 15,481,143.72/x
  3. Step 3: Cross multiply
    28,040,064.78x = 38,695,342.95 × 15,481,143.72
  4. Step 4: Simplify right side
    28,040,064.78x = 599,048,165,503,638.88
  5. Step 5: Solve for x
    x = 599,048,165,503,638.88/28,040,064.78
  6. Step 6: Final answer
    x = 21,364,007.90

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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.