Home / 21,284,007.30-31,926,010.95-20,108,276.10

Finding the Fourth Proportional to 21,284,007.30, 31,926,010.95 and 20,108,276.10

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Solution

The fourth proportional to 21,284,007.30, 31,926,010.95 and 20,108,276.10 is: 30,162,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284,007.30 : 31,926,010.95 = 20,108,276.10 : x
  2. Step 2: Convert to fraction form
    21,284,007.30/31,926,010.95 = 20,108,276.10/x
  3. Step 3: Cross multiply
    21,284,007.30x = 31,926,010.95 × 20,108,276.10
  4. Step 4: Simplify right side
    21,284,007.30x = 641,977,042,954,223.38
  5. Step 5: Solve for x
    x = 641,977,042,954,223.38/21,284,007.30
  6. Step 6: Final answer
    x = 30,162,414.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.