Home / 69,679,729.93-104,512,841.10-21,158,010.22

Finding the Fourth Proportional to 69,679,729.93, 104,512,841.10 and 21,158,010.22

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Solution

The fourth proportional to 69,679,729.93, 104,512,841.10 and 21,158,010.22 is: 31,734,964.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,679,729.93 : 104,512,841.10 = 21,158,010.22 : x
  2. Step 2: Convert to fraction form
    69,679,729.93/104,512,841.10 = 21,158,010.22/x
  3. Step 3: Cross multiply
    69,679,729.93x = 104,512,841.10 × 21,158,010.22
  4. Step 4: Simplify right side
    69,679,729.93x = 2,211,283,760,115,035.75
  5. Step 5: Solve for x
    x = 2,211,283,760,115,035.75/69,679,729.93
  6. Step 6: Final answer
    x = 31,734,964.56

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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.