Home / 8,205,866.80-12,297,797.70-6,386,428.69

Finding the Fourth Proportional to 8,205,866.80, 12,297,797.70 and 6,386,428.69

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Solution

The fourth proportional to 8,205,866.80, 12,297,797.70 and 6,386,428.69 is: 9,571,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205,866.80 : 12,297,797.70 = 6,386,428.69 : x
  2. Step 2: Convert to fraction form
    8,205,866.80/12,297,797.70 = 6,386,428.69/x
  3. Step 3: Cross multiply
    8,205,866.80x = 12,297,797.70 × 6,386,428.69
  4. Step 4: Simplify right side
    8,205,866.80x = 78,539,008,055,096.02
  5. Step 5: Solve for x
    x = 78,539,008,055,096.02/8,205,866.80
  6. Step 6: Final answer
    x = 9,571,080.05

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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.