Home / 12,121,873.94-18,177,460.04-4,543,525.28

Finding the Fourth Proportional to 12,121,873.94, 18,177,460.04 and 4,543,525.28

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Solution

The fourth proportional to 12,121,873.94, 18,177,460.04 and 4,543,525.28 is: 6,813,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121,873.94 : 18,177,460.04 = 4,543,525.28 : x
  2. Step 2: Convert to fraction form
    12,121,873.94/18,177,460.04 = 4,543,525.28/x
  3. Step 3: Cross multiply
    12,121,873.94x = 18,177,460.04 × 4,543,525.28
  4. Step 4: Simplify right side
    12,121,873.94x = 82,589,749,217,929.81
  5. Step 5: Solve for x
    x = 82,589,749,217,929.81/12,121,873.94
  6. Step 6: Final answer
    x = 6,813,282.30

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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.