Home / 20,620,551.75-30,934,810.70-7,840,062.74

Finding the Fourth Proportional to 20,620,551.75, 30,934,810.70 and 7,840,062.74

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Solution

The fourth proportional to 20,620,551.75, 30,934,810.70 and 7,840,062.74 is: 11,761,608.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,551.75 : 30,934,810.70 = 7,840,062.74 : x
  2. Step 2: Convert to fraction form
    20,620,551.75/30,934,810.70 = 7,840,062.74/x
  3. Step 3: Cross multiply
    20,620,551.75x = 30,934,810.70 × 7,840,062.74
  4. Step 4: Simplify right side
    20,620,551.75x = 242,530,856,738,023.31
  5. Step 5: Solve for x
    x = 242,530,856,738,023.31/20,620,551.75
  6. Step 6: Final answer
    x = 11,761,608.50

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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.