Home / 13,940,629.60-20,882,950.80-7,949,999.20

Finding the Fourth Proportional to 13,940,629.60, 20,882,950.80 and 7,949,999.20

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Solution

The fourth proportional to 13,940,629.60, 20,882,950.80 and 7,949,999.20 is: 11,909,034.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940,629.60 : 20,882,950.80 = 7,949,999.20 : x
  2. Step 2: Convert to fraction form
    13,940,629.60/20,882,950.80 = 7,949,999.20/x
  3. Step 3: Cross multiply
    13,940,629.60x = 20,882,950.80 × 7,949,999.20
  4. Step 4: Simplify right side
    13,940,629.60x = 166,019,442,153,639.38
  5. Step 5: Solve for x
    x = 166,019,442,153,639.38/13,940,629.60
  6. Step 6: Final answer
    x = 11,909,034.74

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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.