Home / 28,343,556.52-39,115,389.88-15,957,905.78

Finding the Fourth Proportional to 28,343,556.52, 39,115,389.88 and 15,957,905.78

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Solution

The fourth proportional to 28,343,556.52, 39,115,389.88 and 15,957,905.78 is: 22,022,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343,556.52 : 39,115,389.88 = 15,957,905.78 : x
  2. Step 2: Convert to fraction form
    28,343,556.52/39,115,389.88 = 15,957,905.78/x
  3. Step 3: Cross multiply
    28,343,556.52x = 39,115,389.88 × 15,957,905.78
  4. Step 4: Simplify right side
    28,343,556.52x = 624,199,706,253,005.50
  5. Step 5: Solve for x
    x = 624,199,706,253,005.50/28,343,556.52
  6. Step 6: Final answer
    x = 22,022,631.70

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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.