Home / 12,347,321.40-18,522,950.40-5,155,153.20

Finding the Fourth Proportional to 12,347,321.40, 18,522,950.40 and 5,155,153.20

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Solution

The fourth proportional to 12,347,321.40, 18,522,950.40 and 5,155,153.20 is: 7,733,551.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347,321.40 : 18,522,950.40 = 5,155,153.20 : x
  2. Step 2: Convert to fraction form
    12,347,321.40/18,522,950.40 = 5,155,153.20/x
  3. Step 3: Cross multiply
    12,347,321.40x = 18,522,950.40 × 5,155,153.20
  4. Step 4: Simplify right side
    12,347,321.40x = 95,488,647,028,001.28
  5. Step 5: Solve for x
    x = 95,488,647,028,001.28/12,347,321.40
  6. Step 6: Final answer
    x = 7,733,551.59

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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.