Home / 39,407,485.96-54,382,005.91-21,525,721.12

Finding the Fourth Proportional to 39,407,485.96, 54,382,005.91 and 21,525,721.12

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Solution

The fourth proportional to 39,407,485.96, 54,382,005.91 and 21,525,721.12 is: 29,705,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,407,485.96 : 54,382,005.91 = 21,525,721.12 : x
  2. Step 2: Convert to fraction form
    39,407,485.96/54,382,005.91 = 21,525,721.12/x
  3. Step 3: Cross multiply
    39,407,485.96x = 54,382,005.91 × 21,525,721.12
  4. Step 4: Simplify right side
    39,407,485.96x = 1,170,611,893,164,851.75
  5. Step 5: Solve for x
    x = 1,170,611,893,164,851.75/39,407,485.96
  6. Step 6: Final answer
    x = 29,705,317.78

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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.