Home / 20,323,782.09-28,046,847.69-11,031,354.27

Finding the Fourth Proportional to 20,323,782.09, 28,046,847.69 and 11,031,354.27

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Solution

The fourth proportional to 20,323,782.09, 28,046,847.69 and 11,031,354.27 is: 15,223,284.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323,782.09 : 28,046,847.69 = 11,031,354.27 : x
  2. Step 2: Convert to fraction form
    20,323,782.09/28,046,847.69 = 11,031,354.27/x
  3. Step 3: Cross multiply
    20,323,782.09x = 28,046,847.69 × 11,031,354.27
  4. Step 4: Simplify right side
    20,323,782.09x = 309,394,713,025,121.12
  5. Step 5: Solve for x
    x = 309,394,713,025,121.12/20,323,782.09
  6. Step 6: Final answer
    x = 15,223,284.31

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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.