Home / 69,689,144.80-104,526,905.58-21,167,419.96

Finding the Fourth Proportional to 69,689,144.80, 104,526,905.58 and 21,167,419.96

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Solution

The fourth proportional to 69,689,144.80, 104,526,905.58 and 21,167,419.96 is: 31,749,060.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,689,144.80 : 104,526,905.58 = 21,167,419.96 : x
  2. Step 2: Convert to fraction form
    69,689,144.80/104,526,905.58 = 21,167,419.96/x
  3. Step 3: Cross multiply
    69,689,144.80x = 104,526,905.58 × 21,167,419.96
  4. Step 4: Simplify right side
    69,689,144.80x = 2,212,564,907,531,127.50
  5. Step 5: Solve for x
    x = 2,212,564,907,531,127.50/69,689,144.80
  6. Step 6: Final answer
    x = 31,749,060.97

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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.