Home / 2,166,890.22-2,990,806.20-1,441,768.50

Finding the Fourth Proportional to 2,166,890.22, 2,990,806.20 and 1,441,768.50

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Solution

The fourth proportional to 2,166,890.22, 2,990,806.20 and 1,441,768.50 is: 1,989,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,890.22 : 2,990,806.20 = 1,441,768.50 : x
  2. Step 2: Convert to fraction form
    2,166,890.22/2,990,806.20 = 1,441,768.50/x
  3. Step 3: Cross multiply
    2,166,890.22x = 2,990,806.20 × 1,441,768.50
  4. Step 4: Simplify right side
    2,166,890.22x = 4,312,050,168,764.70
  5. Step 5: Solve for x
    x = 4,312,050,168,764.70/2,166,890.22
  6. Step 6: Final answer
    x = 1,989,971.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.