Home / 28,458,508.22-39,272,696.12-15,405,763.69

Finding the Fourth Proportional to 28,458,508.22, 39,272,696.12 and 15,405,763.69

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Solution

The fourth proportional to 28,458,508.22, 39,272,696.12 and 15,405,763.69 is: 21,259,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458,508.22 : 39,272,696.12 = 15,405,763.69 : x
  2. Step 2: Convert to fraction form
    28,458,508.22/39,272,696.12 = 15,405,763.69/x
  3. Step 3: Cross multiply
    28,458,508.22x = 39,272,696.12 × 15,405,763.69
  4. Step 4: Simplify right side
    28,458,508.22x = 605,025,875,834,232.62
  5. Step 5: Solve for x
    x = 605,025,875,834,232.62/28,458,508.22
  6. Step 6: Final answer
    x = 21,259,929.41

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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.