Home / 7,231,799.90-9,980,005.11-3,968,918.24

Finding the Fourth Proportional to 7,231,799.90, 9,980,005.11 and 3,968,918.24

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Solution

The fourth proportional to 7,231,799.90, 9,980,005.11 and 3,968,918.24 is: 5,477,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,799.90 : 9,980,005.11 = 3,968,918.24 : x
  2. Step 2: Convert to fraction form
    7,231,799.90/9,980,005.11 = 3,968,918.24/x
  3. Step 3: Cross multiply
    7,231,799.90x = 9,980,005.11 × 3,968,918.24
  4. Step 4: Simplify right side
    7,231,799.90x = 39,609,824,266,472.18
  5. Step 5: Solve for x
    x = 39,609,824,266,472.18/7,231,799.90
  6. Step 6: Final answer
    x = 5,477,173.71

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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.