Home / 20,896,097.72-28,835,032.88-11,726,969

Finding the Fourth Proportional to 20,896,097.72, 28,835,032.88 and 11,726,969

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Solution

The fourth proportional to 20,896,097.72, 28,835,032.88 and 11,726,969 is: 16,182,329.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896,097.72 : 28,835,032.88 = 11,726,969 : x
  2. Step 2: Convert to fraction form
    20,896,097.72/28,835,032.88 = 11,726,969/x
  3. Step 3: Cross multiply
    20,896,097.72x = 28,835,032.88 × 11,726,969
  4. Step 4: Simplify right side
    20,896,097.72x = 338,147,536,639,105.88
  5. Step 5: Solve for x
    x = 338,147,536,639,105.88/20,896,097.72
  6. Step 6: Final answer
    x = 16,182,329.41

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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.