Home / 7,135,930.20-10,689,380.10-4,431,955.80

Finding the Fourth Proportional to 7,135,930.20, 10,689,380.10 and 4,431,955.80

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Solution

The fourth proportional to 7,135,930.20, 10,689,380.10 and 4,431,955.80 is: 6,638,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135,930.20 : 10,689,380.10 = 4,431,955.80 : x
  2. Step 2: Convert to fraction form
    7,135,930.20/10,689,380.10 = 4,431,955.80/x
  3. Step 3: Cross multiply
    7,135,930.20x = 10,689,380.10 × 4,431,955.80
  4. Step 4: Simplify right side
    7,135,930.20x = 47,374,860,132,599.58
  5. Step 5: Solve for x
    x = 47,374,860,132,599.58/7,135,930.20
  6. Step 6: Final answer
    x = 6,638,918.66

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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.