Home / 9,965,121.90-14,947,682.85-5,418,348.90

Finding the Fourth Proportional to 9,965,121.90, 14,947,682.85 and 5,418,348.90

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Solution

The fourth proportional to 9,965,121.90, 14,947,682.85 and 5,418,348.90 is: 8,127,523.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965,121.90 : 14,947,682.85 = 5,418,348.90 : x
  2. Step 2: Convert to fraction form
    9,965,121.90/14,947,682.85 = 5,418,348.90/x
  3. Step 3: Cross multiply
    9,965,121.90x = 14,947,682.85 × 5,418,348.90
  4. Step 4: Simplify right side
    9,965,121.90x = 80,991,760,927,846.38
  5. Step 5: Solve for x
    x = 80,991,760,927,846.38/9,965,121.90
  6. Step 6: Final answer
    x = 8,127,523.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.