Home / 21,053,833.29-29,052,668.39-11,887,380.81

Finding the Fourth Proportional to 21,053,833.29, 29,052,668.39 and 11,887,380.81

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Solution

The fourth proportional to 21,053,833.29, 29,052,668.39 and 11,887,380.81 is: 16,403,669.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053,833.29 : 29,052,668.39 = 11,887,380.81 : x
  2. Step 2: Convert to fraction form
    21,053,833.29/29,052,668.39 = 11,887,380.81/x
  3. Step 3: Cross multiply
    21,053,833.29x = 29,052,668.39 × 11,887,380.81
  4. Step 4: Simplify right side
    21,053,833.29x = 345,360,132,639,142.75
  5. Step 5: Solve for x
    x = 345,360,132,639,142.75/21,053,833.29
  6. Step 6: Final answer
    x = 16,403,669.96

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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.