Home / 28,205,100.26-42,307,664.39-18,618,238.18

Finding the Fourth Proportional to 28,205,100.26, 42,307,664.39 and 18,618,238.18

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Solution

The fourth proportional to 28,205,100.26, 42,307,664.39 and 18,618,238.18 is: 27,927,366.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205,100.26 : 42,307,664.39 = 18,618,238.18 : x
  2. Step 2: Convert to fraction form
    28,205,100.26/42,307,664.39 = 18,618,238.18/x
  3. Step 3: Cross multiply
    28,205,100.26x = 42,307,664.39 × 18,618,238.18
  4. Step 4: Simplify right side
    28,205,100.26x = 787,694,172,452,524.38
  5. Step 5: Solve for x
    x = 787,694,172,452,524.38/28,205,100.26
  6. Step 6: Final answer
    x = 27,927,366.51

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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.