Home / 5,431,289.70-8,147,918.70-2,728,813.80

Finding the Fourth Proportional to 5,431,289.70, 8,147,918.70 and 2,728,813.80

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Solution

The fourth proportional to 5,431,289.70, 8,147,918.70 and 2,728,813.80 is: 4,093,715.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431,289.70 : 8,147,918.70 = 2,728,813.80 : x
  2. Step 2: Convert to fraction form
    5,431,289.70/8,147,918.70 = 2,728,813.80/x
  3. Step 3: Cross multiply
    5,431,289.70x = 8,147,918.70 × 2,728,813.80
  4. Step 4: Simplify right side
    5,431,289.70x = 22,234,152,989,838.06
  5. Step 5: Solve for x
    x = 22,234,152,989,838.06/5,431,289.70
  6. Step 6: Final answer
    x = 4,093,715.16

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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.