Home / 8,205,878.20-12,297,814.86-6,386,440.15

Finding the Fourth Proportional to 8,205,878.20, 12,297,814.86 and 6,386,440.15

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Solution

The fourth proportional to 8,205,878.20, 12,297,814.86 and 6,386,440.15 is: 9,571,097.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205,878.20 : 12,297,814.86 = 6,386,440.15 : x
  2. Step 2: Convert to fraction form
    8,205,878.20/12,297,814.86 = 6,386,440.15/x
  3. Step 3: Cross multiply
    8,205,878.20x = 12,297,814.86 × 6,386,440.15
  4. Step 4: Simplify right side
    8,205,878.20x = 78,539,258,485,749.34
  5. Step 5: Solve for x
    x = 78,539,258,485,749.34/8,205,878.20
  6. Step 6: Final answer
    x = 9,571,097.28

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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.