Home / 28,640,996.75-39,525,443.54-15,589,199.45

Finding the Fourth Proportional to 28,640,996.75, 39,525,443.54 and 15,589,199.45

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Solution

The fourth proportional to 28,640,996.75, 39,525,443.54 and 15,589,199.45 is: 21,513,567.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640,996.75 : 39,525,443.54 = 15,589,199.45 : x
  2. Step 2: Convert to fraction form
    28,640,996.75/39,525,443.54 = 15,589,199.45/x
  3. Step 3: Cross multiply
    28,640,996.75x = 39,525,443.54 × 15,589,199.45
  4. Step 4: Simplify right side
    28,640,996.75x = 616,170,022,774,101.25
  5. Step 5: Solve for x
    x = 616,170,022,774,101.25/28,640,996.75
  6. Step 6: Final answer
    x = 21,513,567.71

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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.