Home / 69,689,145.18-104,526,906.39-21,167,420.34

Finding the Fourth Proportional to 69,689,145.18, 104,526,906.39 and 21,167,420.34

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Solution

The fourth proportional to 69,689,145.18, 104,526,906.39 and 21,167,420.34 is: 31,749,061.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,689,145.18 : 104,526,906.39 = 21,167,420.34 : x
  2. Step 2: Convert to fraction form
    69,689,145.18/104,526,906.39 = 21,167,420.34/x
  3. Step 3: Cross multiply
    69,689,145.18x = 104,526,906.39 × 21,167,420.34
  4. Step 4: Simplify right side
    69,689,145.18x = 2,212,564,964,396,962
  5. Step 5: Solve for x
    x = 2,212,564,964,396,962/69,689,145.18
  6. Step 6: Final answer
    x = 31,749,061.62

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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.