Home / 20,889,747.10-31,308,048.60-10,083,780.10

Finding the Fourth Proportional to 20,889,747.10, 31,308,048.60 and 10,083,780.10

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Solution

The fourth proportional to 20,889,747.10, 31,308,048.60 and 10,083,780.10 is: 15,112,843.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,889,747.10 : 31,308,048.60 = 10,083,780.10 : x
  2. Step 2: Convert to fraction form
    20,889,747.10/31,308,048.60 = 10,083,780.10/x
  3. Step 3: Cross multiply
    20,889,747.10x = 31,308,048.60 × 10,083,780.10
  4. Step 4: Simplify right side
    20,889,747.10x = 315,703,477,442,512.88
  5. Step 5: Solve for x
    x = 315,703,477,442,512.88/20,889,747.10
  6. Step 6: Final answer
    x = 15,112,843.44

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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.