Home / 28,777,888.85-39,713,589.83-15,725,147.49

Finding the Fourth Proportional to 28,777,888.85, 39,713,589.83 and 15,725,147.49

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Solution

The fourth proportional to 28,777,888.85, 39,713,589.83 and 15,725,147.49 is: 21,700,759.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777,888.85 : 39,713,589.83 = 15,725,147.49 : x
  2. Step 2: Convert to fraction form
    28,777,888.85/39,713,589.83 = 15,725,147.49/x
  3. Step 3: Cross multiply
    28,777,888.85x = 39,713,589.83 × 15,725,147.49
  4. Step 4: Simplify right side
    28,777,888.85x = 624,502,057,473,427
  5. Step 5: Solve for x
    x = 624,502,057,473,427/28,777,888.85
  6. Step 6: Final answer
    x = 21,700,759.94

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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.