Home / 19,178,163.29-28,767,047.79-11,085,989.87

Finding the Fourth Proportional to 19,178,163.29, 28,767,047.79 and 11,085,989.87

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Solution

The fourth proportional to 19,178,163.29, 28,767,047.79 and 11,085,989.87 is: 16,628,870.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178,163.29 : 28,767,047.79 = 11,085,989.87 : x
  2. Step 2: Convert to fraction form
    19,178,163.29/28,767,047.79 = 11,085,989.87/x
  3. Step 3: Cross multiply
    19,178,163.29x = 28,767,047.79 × 11,085,989.87
  4. Step 4: Simplify right side
    19,178,163.29x = 318,911,200,389,745.88
  5. Step 5: Solve for x
    x = 318,911,200,389,745.88/19,178,163.29
  6. Step 6: Final answer
    x = 16,628,870.84

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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.