Home / 39,963,987.12-55,150,301.21-21,629,272.62

Finding the Fourth Proportional to 39,963,987.12, 55,150,301.21 and 21,629,272.62

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Solution

The fourth proportional to 39,963,987.12, 55,150,301.21 and 21,629,272.62 is: 29,848,395.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,963,987.12 : 55,150,301.21 = 21,629,272.62 : x
  2. Step 2: Convert to fraction form
    39,963,987.12/55,150,301.21 = 21,629,272.62/x
  3. Step 3: Cross multiply
    39,963,987.12x = 55,150,301.21 × 21,629,272.62
  4. Step 4: Simplify right side
    39,963,987.12x = 1,192,860,899,838,059.50
  5. Step 5: Solve for x
    x = 1,192,860,899,838,059.50/39,963,987.12
  6. Step 6: Final answer
    x = 29,848,395.66

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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.