Home / 18,551,356.89-27,828,942.09-6,420,800.53

Finding the Fourth Proportional to 18,551,356.89, 27,828,942.09 and 6,420,800.53

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Solution

The fourth proportional to 18,551,356.89, 27,828,942.09 and 6,420,800.53 is: 9,631,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551,356.89 : 27,828,942.09 = 6,420,800.53 : x
  2. Step 2: Convert to fraction form
    18,551,356.89/27,828,942.09 = 6,420,800.53/x
  3. Step 3: Cross multiply
    18,551,356.89x = 27,828,942.09 × 6,420,800.53
  4. Step 4: Simplify right side
    18,551,356.89x = 178,684,086,120,811.31
  5. Step 5: Solve for x
    x = 178,684,086,120,811.31/18,551,356.89
  6. Step 6: Final answer
    x = 9,631,860.74

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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.