Home / 21,453,012.20-29,605,273.14-12,632,846.60

Finding the Fourth Proportional to 21,453,012.20, 29,605,273.14 and 12,632,846.60

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Solution

The fourth proportional to 21,453,012.20, 29,605,273.14 and 12,632,846.60 is: 17,433,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453,012.20 : 29,605,273.14 = 12,632,846.60 : x
  2. Step 2: Convert to fraction form
    21,453,012.20/29,605,273.14 = 12,632,846.60/x
  3. Step 3: Cross multiply
    21,453,012.20x = 29,605,273.14 × 12,632,846.60
  4. Step 4: Simplify right side
    21,453,012.20x = 373,998,874,128,720.31
  5. Step 5: Solve for x
    x = 373,998,874,128,720.31/21,453,012.20
  6. Step 6: Final answer
    x = 17,433,396.79

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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.