Home / 8,297,966.60-12,446,949.90-5,428,185.20

Finding the Fourth Proportional to 8,297,966.60, 12,446,949.90 and 5,428,185.20

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Solution

The fourth proportional to 8,297,966.60, 12,446,949.90 and 5,428,185.20 is: 8,142,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,297,966.60 : 12,446,949.90 = 5,428,185.20 : x
  2. Step 2: Convert to fraction form
    8,297,966.60/12,446,949.90 = 5,428,185.20/x
  3. Step 3: Cross multiply
    8,297,966.60x = 12,446,949.90 × 5,428,185.20
  4. Step 4: Simplify right side
    8,297,966.60x = 67,564,349,232,321.48
  5. Step 5: Solve for x
    x = 67,564,349,232,321.48/8,297,966.60
  6. Step 6: Final answer
    x = 8,142,277.80

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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.