Home / 20,227,806.78-30,335,385.66-6,761,485.50

Finding the Fourth Proportional to 20,227,806.78, 30,335,385.66 and 6,761,485.50

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Solution

The fourth proportional to 20,227,806.78, 30,335,385.66 and 6,761,485.50 is: 10,140,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227,806.78 : 30,335,385.66 = 6,761,485.50 : x
  2. Step 2: Convert to fraction form
    20,227,806.78/30,335,385.66 = 6,761,485.50/x
  3. Step 3: Cross multiply
    20,227,806.78x = 30,335,385.66 × 6,761,485.50
  4. Step 4: Simplify right side
    20,227,806.78x = 205,112,270,276,997.94
  5. Step 5: Solve for x
    x = 205,112,270,276,997.94/20,227,806.78
  6. Step 6: Final answer
    x = 10,140,114.18

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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.