Home / 20,342,291.25-28,072,868.22-11,049,858.66

Finding the Fourth Proportional to 20,342,291.25, 28,072,868.22 and 11,049,858.66

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Solution

The fourth proportional to 20,342,291.25, 28,072,868.22 and 11,049,858.66 is: 15,249,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342,291.25 : 28,072,868.22 = 11,049,858.66 : x
  2. Step 2: Convert to fraction form
    20,342,291.25/28,072,868.22 = 11,049,858.66/x
  3. Step 3: Cross multiply
    20,342,291.25x = 28,072,868.22 × 11,049,858.66
  4. Step 4: Simplify right side
    20,342,291.25x = 310,201,226,011,805.75
  5. Step 5: Solve for x
    x = 310,201,226,011,805.75/20,342,291.25
  6. Step 6: Final answer
    x = 15,249,079.97

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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.