Home / 2,772,084.40-4,158,126.61-1,921,778.80

Finding the Fourth Proportional to 2,772,084.40, 4,158,126.61 and 1,921,778.80

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Solution

The fourth proportional to 2,772,084.40, 4,158,126.61 and 1,921,778.80 is: 2,882,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772,084.40 : 4,158,126.61 = 1,921,778.80 : x
  2. Step 2: Convert to fraction form
    2,772,084.40/4,158,126.61 = 1,921,778.80/x
  3. Step 3: Cross multiply
    2,772,084.40x = 4,158,126.61 × 1,921,778.80
  4. Step 4: Simplify right side
    2,772,084.40x = 7,990,999,566,813.87
  5. Step 5: Solve for x
    x = 7,990,999,566,813.87/2,772,084.40
  6. Step 6: Final answer
    x = 2,882,668.21

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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.