Home / 13,887,890.20-19,166,078.54-7,776,265.24

Finding the Fourth Proportional to 13,887,890.20, 19,166,078.54 and 7,776,265.24

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Solution

The fourth proportional to 13,887,890.20, 19,166,078.54 and 7,776,265.24 is: 10,731,688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887,890.20 : 19,166,078.54 = 7,776,265.24 : x
  2. Step 2: Convert to fraction form
    13,887,890.20/19,166,078.54 = 7,776,265.24/x
  3. Step 3: Cross multiply
    13,887,890.20x = 19,166,078.54 × 7,776,265.24
  4. Step 4: Simplify right side
    13,887,890.20x = 149,040,510,337,711.94
  5. Step 5: Solve for x
    x = 149,040,510,337,711.94/13,887,890.20
  6. Step 6: Final answer
    x = 10,731,688.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.