Home / 31,108,889.10-42,918,293.22-19,486,218.54

Finding the Fourth Proportional to 31,108,889.10, 42,918,293.22 and 19,486,218.54

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Solution

The fourth proportional to 31,108,889.10, 42,918,293.22 and 19,486,218.54 is: 26,883,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108,889.10 : 42,918,293.22 = 19,486,218.54 : x
  2. Step 2: Convert to fraction form
    31,108,889.10/42,918,293.22 = 19,486,218.54/x
  3. Step 3: Cross multiply
    31,108,889.10x = 42,918,293.22 × 19,486,218.54
  4. Step 4: Simplify right side
    31,108,889.10x = 836,315,241,048,720.25
  5. Step 5: Solve for x
    x = 836,315,241,048,720.25/31,108,889.10
  6. Step 6: Final answer
    x = 26,883,481.39

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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.