Home / 6,440,111.20-9,660,166.80-4,172,629.60

Finding the Fourth Proportional to 6,440,111.20, 9,660,166.80 and 4,172,629.60

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Solution

The fourth proportional to 6,440,111.20, 9,660,166.80 and 4,172,629.60 is: 6,258,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440,111.20 : 9,660,166.80 = 4,172,629.60 : x
  2. Step 2: Convert to fraction form
    6,440,111.20/9,660,166.80 = 4,172,629.60/x
  3. Step 3: Cross multiply
    6,440,111.20x = 9,660,166.80 × 4,172,629.60
  4. Step 4: Simplify right side
    6,440,111.20x = 40,308,297,930,617.28
  5. Step 5: Solve for x
    x = 40,308,297,930,617.28/6,440,111.20
  6. Step 6: Final answer
    x = 6,258,944.40

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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.