Home / 28,923,255.36-39,914,076.96-15,870,600

Finding the Fourth Proportional to 28,923,255.36, 39,914,076.96 and 15,870,600

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Solution

The fourth proportional to 28,923,255.36, 39,914,076.96 and 15,870,600 is: 21,901,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,923,255.36 : 39,914,076.96 = 15,870,600 : x
  2. Step 2: Convert to fraction form
    28,923,255.36/39,914,076.96 = 15,870,600/x
  3. Step 3: Cross multiply
    28,923,255.36x = 39,914,076.96 × 15,870,600
  4. Step 4: Simplify right side
    28,923,255.36x = 633,460,349,801,376
  5. Step 5: Solve for x
    x = 633,460,349,801,376/28,923,255.36
  6. Step 6: Final answer
    x = 21,901,419.53

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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.