Home / 28,828,115.68-39,782,802.80-15,775,377.36

Finding the Fourth Proportional to 28,828,115.68, 39,782,802.80 and 15,775,377.36

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Solution

The fourth proportional to 28,828,115.68, 39,782,802.80 and 15,775,377.36 is: 21,770,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828,115.68 : 39,782,802.80 = 15,775,377.36 : x
  2. Step 2: Convert to fraction form
    28,828,115.68/39,782,802.80 = 15,775,377.36/x
  3. Step 3: Cross multiply
    28,828,115.68x = 39,782,802.80 × 15,775,377.36
  4. Step 4: Simplify right side
    28,828,115.68x = 627,588,726,608,464.50
  5. Step 5: Solve for x
    x = 627,588,726,608,464.50/28,828,115.68
  6. Step 6: Final answer
    x = 21,770,022.49

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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.