Home / 18,144,334.08-25,004,729.52-12,978,727.20

Finding the Fourth Proportional to 18,144,334.08, 25,004,729.52 and 12,978,727.20

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Solution

The fourth proportional to 18,144,334.08, 25,004,729.52 and 12,978,727.20 is: 17,886,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,334.08 : 25,004,729.52 = 12,978,727.20 : x
  2. Step 2: Convert to fraction form
    18,144,334.08/25,004,729.52 = 12,978,727.20/x
  3. Step 3: Cross multiply
    18,144,334.08x = 25,004,729.52 × 12,978,727.20
  4. Step 4: Simplify right side
    18,144,334.08x = 324,529,563,149,866.94
  5. Step 5: Solve for x
    x = 324,529,563,149,866.94/18,144,334.08
  6. Step 6: Final answer
    x = 17,886,000.21

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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.