Home / 20,687,349.93-28,548,542.78-11,990,567.04

Finding the Fourth Proportional to 20,687,349.93, 28,548,542.78 and 11,990,567.04

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Solution

The fourth proportional to 20,687,349.93, 28,548,542.78 and 11,990,567.04 is: 16,546,982.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,349.93 : 28,548,542.78 = 11,990,567.04 : x
  2. Step 2: Convert to fraction form
    20,687,349.93/28,548,542.78 = 11,990,567.04/x
  3. Step 3: Cross multiply
    20,687,349.93x = 28,548,542.78 × 11,990,567.04
  4. Step 4: Simplify right side
    20,687,349.93x = 342,313,216,097,897.94
  5. Step 5: Solve for x
    x = 342,313,216,097,897.94/20,687,349.93
  6. Step 6: Final answer
    x = 16,546,982.44

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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.