Home / 15,685,295.45-21,647,737.49-8,809,777.31

Finding the Fourth Proportional to 15,685,295.45, 21,647,737.49 and 8,809,777.31

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Solution

The fourth proportional to 15,685,295.45, 21,647,737.49 and 8,809,777.31 is: 12,158,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685,295.45 : 21,647,737.49 = 8,809,777.31 : x
  2. Step 2: Convert to fraction form
    15,685,295.45/21,647,737.49 = 8,809,777.31/x
  3. Step 3: Cross multiply
    15,685,295.45x = 21,647,737.49 × 8,809,777.31
  4. Step 4: Simplify right side
    15,685,295.45x = 190,711,746,399,950.78
  5. Step 5: Solve for x
    x = 190,711,746,399,950.78/15,685,295.45
  6. Step 6: Final answer
    x = 12,158,632.72

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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.