Home / 21,315,079.68-29,414,789.16-11,525,500.44

Finding the Fourth Proportional to 21,315,079.68, 29,414,789.16 and 11,525,500.44

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Solution

The fourth proportional to 21,315,079.68, 29,414,789.16 and 11,525,500.44 is: 15,905,179.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,079.68 : 29,414,789.16 = 11,525,500.44 : x
  2. Step 2: Convert to fraction form
    21,315,079.68/29,414,789.16 = 11,525,500.44/x
  3. Step 3: Cross multiply
    21,315,079.68x = 29,414,789.16 × 11,525,500.44
  4. Step 4: Simplify right side
    21,315,079.68x = 339,020,165,406,087.19
  5. Step 5: Solve for x
    x = 339,020,165,406,087.19/21,315,079.68
  6. Step 6: Final answer
    x = 15,905,179.36

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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.