Home / 20,479,939.69-28,262,230.60-11,312,582.44

Finding the Fourth Proportional to 20,479,939.69, 28,262,230.60 and 11,312,582.44

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Solution

The fourth proportional to 20,479,939.69, 28,262,230.60 and 11,312,582.44 is: 15,611,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479,939.69 : 28,262,230.60 = 11,312,582.44 : x
  2. Step 2: Convert to fraction form
    20,479,939.69/28,262,230.60 = 11,312,582.44/x
  3. Step 3: Cross multiply
    20,479,939.69x = 28,262,230.60 × 11,312,582.44
  4. Step 4: Simplify right side
    20,479,939.69x = 319,718,813,431,198.06
  5. Step 5: Solve for x
    x = 319,718,813,431,198.06/20,479,939.69
  6. Step 6: Final answer
    x = 15,611,316.16

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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.