Home / 6,420,653.10-8,860,499.14-3,519,981.69

Finding the Fourth Proportional to 6,420,653.10, 8,860,499.14 and 3,519,981.69

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Solution

The fourth proportional to 6,420,653.10, 8,860,499.14 and 3,519,981.69 is: 4,857,573.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,653.10 : 8,860,499.14 = 3,519,981.69 : x
  2. Step 2: Convert to fraction form
    6,420,653.10/8,860,499.14 = 3,519,981.69/x
  3. Step 3: Cross multiply
    6,420,653.10x = 8,860,499.14 × 3,519,981.69
  4. Step 4: Simplify right side
    6,420,653.10x = 31,188,794,737,060.75
  5. Step 5: Solve for x
    x = 31,188,794,737,060.75/6,420,653.10
  6. Step 6: Final answer
    x = 4,857,573.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.