Home / 7,135,921.20-10,689,366.60-4,431,946.80

Finding the Fourth Proportional to 7,135,921.20, 10,689,366.60 and 4,431,946.80

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Solution

The fourth proportional to 7,135,921.20, 10,689,366.60 and 4,431,946.80 is: 6,638,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135,921.20 : 10,689,366.60 = 4,431,946.80 : x
  2. Step 2: Convert to fraction form
    7,135,921.20/10,689,366.60 = 4,431,946.80/x
  3. Step 3: Cross multiply
    7,135,921.20x = 10,689,366.60 × 4,431,946.80
  4. Step 4: Simplify right side
    7,135,921.20x = 47,374,704,096,896.88
  5. Step 5: Solve for x
    x = 47,374,704,096,896.88/7,135,921.20
  6. Step 6: Final answer
    x = 6,638,905.16

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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.