Home / 21,122,150.72-29,147,788.32-11,464,151.36

Finding the Fourth Proportional to 21,122,150.72, 29,147,788.32 and 11,464,151.36

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Solution

The fourth proportional to 21,122,150.72, 29,147,788.32 and 11,464,151.36 is: 15,820,105.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,122,150.72 : 29,147,788.32 = 11,464,151.36 : x
  2. Step 2: Convert to fraction form
    21,122,150.72/29,147,788.32 = 11,464,151.36/x
  3. Step 3: Cross multiply
    21,122,150.72x = 29,147,788.32 × 11,464,151.36
  4. Step 4: Simplify right side
    21,122,150.72x = 334,154,657,109,720.12
  5. Step 5: Solve for x
    x = 334,154,657,109,720.12/21,122,150.72
  6. Step 6: Final answer
    x = 15,820,105.71

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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.