Home / 20,451,222.56-28,232,914.20-12,718,755.92

Finding the Fourth Proportional to 20,451,222.56, 28,232,914.20 and 12,718,755.92

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Solution

The fourth proportional to 20,451,222.56, 28,232,914.20 and 12,718,755.92 is: 17,558,243.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,222.56 : 28,232,914.20 = 12,718,755.92 : x
  2. Step 2: Convert to fraction form
    20,451,222.56/28,232,914.20 = 12,718,755.92/x
  3. Step 3: Cross multiply
    20,451,222.56x = 28,232,914.20 × 12,718,755.92
  4. Step 4: Simplify right side
    20,451,222.56x = 359,087,544,620,102.06
  5. Step 5: Solve for x
    x = 359,087,544,620,102.06/20,451,222.56
  6. Step 6: Final answer
    x = 17,558,243.45

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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.