Home / 28,846,138.69-39,806,094.67-15,790,872.30

Finding the Fourth Proportional to 28,846,138.69, 39,806,094.67 and 15,790,872.30

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Solution

The fourth proportional to 28,846,138.69, 39,806,094.67 and 15,790,872.30 is: 21,790,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,846,138.69 : 39,806,094.67 = 15,790,872.30 : x
  2. Step 2: Convert to fraction form
    28,846,138.69/39,806,094.67 = 15,790,872.30/x
  3. Step 3: Cross multiply
    28,846,138.69x = 39,806,094.67 × 15,790,872.30
  4. Step 4: Simplify right side
    28,846,138.69x = 628,572,957,695,680.75
  5. Step 5: Solve for x
    x = 628,572,957,695,680.75/28,846,138.69
  6. Step 6: Final answer
    x = 21,790,540.65

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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.