Home / 8,140,005.20-12,210,007.80-3,351,131.30

Finding the Fourth Proportional to 8,140,005.20, 12,210,007.80 and 3,351,131.30

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Solution

The fourth proportional to 8,140,005.20, 12,210,007.80 and 3,351,131.30 is: 5,026,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140,005.20 : 12,210,007.80 = 3,351,131.30 : x
  2. Step 2: Convert to fraction form
    8,140,005.20/12,210,007.80 = 3,351,131.30/x
  3. Step 3: Cross multiply
    8,140,005.20x = 12,210,007.80 × 3,351,131.30
  4. Step 4: Simplify right side
    8,140,005.20x = 40,917,339,311,824.14
  5. Step 5: Solve for x
    x = 40,917,339,311,824.14/8,140,005.20
  6. Step 6: Final answer
    x = 5,026,696.95

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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.