Home / 8,205,878.82-12,297,815.79-6,386,440.77

Finding the Fourth Proportional to 8,205,878.82, 12,297,815.79 and 6,386,440.77

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Solution

The fourth proportional to 8,205,878.82, 12,297,815.79 and 6,386,440.77 is: 9,571,098.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205,878.82 : 12,297,815.79 = 6,386,440.77 : x
  2. Step 2: Convert to fraction form
    8,205,878.82/12,297,815.79 = 6,386,440.77/x
  3. Step 3: Cross multiply
    8,205,878.82x = 12,297,815.79 × 6,386,440.77
  4. Step 4: Simplify right side
    8,205,878.82x = 78,539,272,143,205.75
  5. Step 5: Solve for x
    x = 78,539,272,143,205.75/8,205,878.82
  6. Step 6: Final answer
    x = 9,571,098.22

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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.