Home / 12,821,773.57-19,202,129.43-7,419,037.93

Finding the Fourth Proportional to 12,821,773.57, 19,202,129.43 and 7,419,037.93

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Solution

The fourth proportional to 12,821,773.57, 19,202,129.43 and 7,419,037.93 is: 11,110,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821,773.57 : 19,202,129.43 = 7,419,037.93 : x
  2. Step 2: Convert to fraction form
    12,821,773.57/19,202,129.43 = 7,419,037.93/x
  3. Step 3: Cross multiply
    12,821,773.57x = 19,202,129.43 × 7,419,037.93
  4. Step 4: Simplify right side
    12,821,773.57x = 142,461,326,577,939.28
  5. Step 5: Solve for x
    x = 142,461,326,577,939.28/12,821,773.57
  6. Step 6: Final answer
    x = 11,110,890.85

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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.