Home / 8,455,225.20-12,682,837.80-5,431,916.40

Finding the Fourth Proportional to 8,455,225.20, 12,682,837.80 and 5,431,916.40

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Solution

The fourth proportional to 8,455,225.20, 12,682,837.80 and 5,431,916.40 is: 8,147,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455,225.20 : 12,682,837.80 = 5,431,916.40 : x
  2. Step 2: Convert to fraction form
    8,455,225.20/12,682,837.80 = 5,431,916.40/x
  3. Step 3: Cross multiply
    8,455,225.20x = 12,682,837.80 × 5,431,916.40
  4. Step 4: Simplify right side
    8,455,225.20x = 68,892,114,644,359.93
  5. Step 5: Solve for x
    x = 68,892,114,644,359.93/8,455,225.20
  6. Step 6: Final answer
    x = 8,147,874.60

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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.