Home / 2,920,211.80-4,380,317.70-2,117,728.60

Finding the Fourth Proportional to 2,920,211.80, 4,380,317.70 and 2,117,728.60

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Solution

The fourth proportional to 2,920,211.80, 4,380,317.70 and 2,117,728.60 is: 3,176,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920,211.80 : 4,380,317.70 = 2,117,728.60 : x
  2. Step 2: Convert to fraction form
    2,920,211.80/4,380,317.70 = 2,117,728.60/x
  3. Step 3: Cross multiply
    2,920,211.80x = 4,380,317.70 × 2,117,728.60
  4. Step 4: Simplify right side
    2,920,211.80x = 9,276,324,070,376.22
  5. Step 5: Solve for x
    x = 9,276,324,070,376.22/2,920,211.80
  6. Step 6: Final answer
    x = 3,176,592.90

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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.