Home / 12,103,477.80-18,155,216.70-4,427,107.80

Finding the Fourth Proportional to 12,103,477.80, 18,155,216.70 and 4,427,107.80

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Solution

The fourth proportional to 12,103,477.80, 18,155,216.70 and 4,427,107.80 is: 6,640,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103,477.80 : 18,155,216.70 = 4,427,107.80 : x
  2. Step 2: Convert to fraction form
    12,103,477.80/18,155,216.70 = 4,427,107.80/x
  3. Step 3: Cross multiply
    12,103,477.80x = 18,155,216.70 × 4,427,107.80
  4. Step 4: Simplify right side
    12,103,477.80x = 80,375,101,463,260.25
  5. Step 5: Solve for x
    x = 80,375,101,463,260.25/12,103,477.80
  6. Step 6: Final answer
    x = 6,640,661.70

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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.