Home / 28,427,383.94-39,229,789.56-15,374,642.48

Finding the Fourth Proportional to 28,427,383.94, 39,229,789.56 and 15,374,642.48

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Solution

The fourth proportional to 28,427,383.94, 39,229,789.56 and 15,374,642.48 is: 21,217,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427,383.94 : 39,229,789.56 = 15,374,642.48 : x
  2. Step 2: Convert to fraction form
    28,427,383.94/39,229,789.56 = 15,374,642.48/x
  3. Step 3: Cross multiply
    28,427,383.94x = 39,229,789.56 × 15,374,642.48
  4. Step 4: Simplify right side
    28,427,383.94x = 603,143,989,050,636.62
  5. Step 5: Solve for x
    x = 603,143,989,050,636.62/28,427,383.94
  6. Step 6: Final answer
    x = 21,217,006.47

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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.