Home / 69,788,732.69-104,694,461.21-20,609,560.42

Finding the Fourth Proportional to 69,788,732.69, 104,694,461.21 and 20,609,560.42

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Solution

The fourth proportional to 69,788,732.69, 104,694,461.21 and 20,609,560.42 is: 30,917,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,788,732.69 : 104,694,461.21 = 20,609,560.42 : x
  2. Step 2: Convert to fraction form
    69,788,732.69/104,694,461.21 = 20,609,560.42/x
  3. Step 3: Cross multiply
    69,788,732.69x = 104,694,461.21 × 20,609,560.42
  4. Step 4: Simplify right side
    69,788,732.69x = 2,157,706,823,736,629.25
  5. Step 5: Solve for x
    x = 2,157,706,823,736,629.25/69,788,732.69
  6. Step 6: Final answer
    x = 30,917,696.03

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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.