Home / 20,866,266.31-28,794,005.40-11,572,959.73

Finding the Fourth Proportional to 20,866,266.31, 28,794,005.40 and 11,572,959.73

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Solution

The fourth proportional to 20,866,266.31, 28,794,005.40 and 11,572,959.73 is: 15,969,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,866,266.31 : 28,794,005.40 = 11,572,959.73 : x
  2. Step 2: Convert to fraction form
    20,866,266.31/28,794,005.40 = 11,572,959.73/x
  3. Step 3: Cross multiply
    20,866,266.31x = 28,794,005.40 × 11,572,959.73
  4. Step 4: Simplify right side
    20,866,266.31x = 333,231,864,959,602.56
  5. Step 5: Solve for x
    x = 333,231,864,959,602.56/20,866,266.31
  6. Step 6: Final answer
    x = 15,969,884.60

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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.