Home / 31,251,477.84-43,122,949.58-18,021,143.42

Finding the Fourth Proportional to 31,251,477.84, 43,122,949.58 and 18,021,143.42

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Solution

The fourth proportional to 31,251,477.84, 43,122,949.58 and 18,021,143.42 is: 24,866,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251,477.84 : 43,122,949.58 = 18,021,143.42 : x
  2. Step 2: Convert to fraction form
    31,251,477.84/43,122,949.58 = 18,021,143.42/x
  3. Step 3: Cross multiply
    31,251,477.84x = 43,122,949.58 × 18,021,143.42
  4. Step 4: Simplify right side
    31,251,477.84x = 777,124,858,904,046.88
  5. Step 5: Solve for x
    x = 777,124,858,904,046.88/31,251,477.84
  6. Step 6: Final answer
    x = 24,866,819.51

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1.5x scale

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.