Home / 2,100,108.23-3,150,125.89-680,166.89

Finding the Fourth Proportional to 2,100,108.23, 3,150,125.89 and 680,166.89

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Solution

The fourth proportional to 2,100,108.23, 3,150,125.89 and 680,166.89 is: 1,020,238.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,108.23 : 3,150,125.89 = 680,166.89 : x
  2. Step 2: Convert to fraction form
    2,100,108.23/3,150,125.89 = 680,166.89/x
  3. Step 3: Cross multiply
    2,100,108.23x = 3,150,125.89 × 680,166.89
  4. Step 4: Simplify right side
    2,100,108.23x = 2,142,611,326,308.95
  5. Step 5: Solve for x
    x = 2,142,611,326,308.95/2,100,108.23
  6. Step 6: Final answer
    x = 1,020,238.53

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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.