Home / 2,914,920.80-4,372,381.20-2,112,437.60

Finding the Fourth Proportional to 2,914,920.80, 4,372,381.20 and 2,112,437.60

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Solution

The fourth proportional to 2,914,920.80, 4,372,381.20 and 2,112,437.60 is: 3,168,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914,920.80 : 4,372,381.20 = 2,112,437.60 : x
  2. Step 2: Convert to fraction form
    2,914,920.80/4,372,381.20 = 2,112,437.60/x
  3. Step 3: Cross multiply
    2,914,920.80x = 4,372,381.20 × 2,112,437.60
  4. Step 4: Simplify right side
    2,914,920.80x = 9,236,382,448,413.12
  5. Step 5: Solve for x
    x = 9,236,382,448,413.12/2,914,920.80
  6. Step 6: Final answer
    x = 3,168,656.40

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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.