Home / 28,773,790.45-39,707,367.41-15,720,769.09

Finding the Fourth Proportional to 28,773,790.45, 39,707,367.41 and 15,720,769.09

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Solution

The fourth proportional to 28,773,790.45, 39,707,367.41 and 15,720,769.09 is: 21,694,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773,790.45 : 39,707,367.41 = 15,720,769.09 : x
  2. Step 2: Convert to fraction form
    28,773,790.45/39,707,367.41 = 15,720,769.09/x
  3. Step 3: Cross multiply
    28,773,790.45x = 39,707,367.41 × 15,720,769.09
  4. Step 4: Simplify right side
    28,773,790.45x = 624,230,354,065,166.50
  5. Step 5: Solve for x
    x = 624,230,354,065,166.50/28,773,790.45
  6. Step 6: Final answer
    x = 21,694,408.15

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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.