Home / 30,439,188.54-42,004,965.51-16,687,850.94

Finding the Fourth Proportional to 30,439,188.54, 42,004,965.51 and 16,687,850.94

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Solution

The fourth proportional to 30,439,188.54, 42,004,965.51 and 16,687,850.94 is: 23,028,623.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439,188.54 : 42,004,965.51 = 16,687,850.94 : x
  2. Step 2: Convert to fraction form
    30,439,188.54/42,004,965.51 = 16,687,850.94/x
  3. Step 3: Cross multiply
    30,439,188.54x = 42,004,965.51 × 16,687,850.94
  4. Step 4: Simplify right side
    30,439,188.54x = 700,972,603,170,721
  5. Step 5: Solve for x
    x = 700,972,603,170,721/30,439,188.54
  6. Step 6: Final answer
    x = 23,028,623.19

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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.