Home / 21,042,223.43-31,572,428.04-11,315,467.71

Finding the Fourth Proportional to 21,042,223.43, 31,572,428.04 and 11,315,467.71

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Solution

The fourth proportional to 21,042,223.43, 31,572,428.04 and 11,315,467.71 is: 16,978,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,223.43 : 31,572,428.04 = 11,315,467.71 : x
  2. Step 2: Convert to fraction form
    21,042,223.43/31,572,428.04 = 11,315,467.71/x
  3. Step 3: Cross multiply
    21,042,223.43x = 31,572,428.04 × 11,315,467.71
  4. Step 4: Simplify right side
    21,042,223.43x = 357,256,790,012,918.62
  5. Step 5: Solve for x
    x = 357,256,790,012,918.62/21,042,223.43
  6. Step 6: Final answer
    x = 16,978,091.28

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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.