Home / 21,168,588.60-31,763,380.50-8,388,810.36

Finding the Fourth Proportional to 21,168,588.60, 31,763,380.50 and 8,388,810.36

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Solution

The fourth proportional to 21,168,588.60, 31,763,380.50 and 8,388,810.36 is: 12,587,375.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168,588.60 : 31,763,380.50 = 8,388,810.36 : x
  2. Step 2: Convert to fraction form
    21,168,588.60/31,763,380.50 = 8,388,810.36/x
  3. Step 3: Cross multiply
    21,168,588.60x = 31,763,380.50 × 8,388,810.36
  4. Step 4: Simplify right side
    21,168,588.60x = 266,456,975,407,021.97
  5. Step 5: Solve for x
    x = 266,456,975,407,021.97/21,168,588.60
  6. Step 6: Final answer
    x = 12,587,375.59

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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.