Home / 7,939,321.05-11,909,691.96-3,081,513.66

Finding the Fourth Proportional to 7,939,321.05, 11,909,691.96 and 3,081,513.66

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Solution

The fourth proportional to 7,939,321.05, 11,909,691.96 and 3,081,513.66 is: 4,622,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939,321.05 : 11,909,691.96 = 3,081,513.66 : x
  2. Step 2: Convert to fraction form
    7,939,321.05/11,909,691.96 = 3,081,513.66/x
  3. Step 3: Cross multiply
    7,939,321.05x = 11,909,691.96 × 3,081,513.66
  4. Step 4: Simplify right side
    7,939,321.05x = 36,699,878,461,132.18
  5. Step 5: Solve for x
    x = 36,699,878,461,132.18/7,939,321.05
  6. Step 6: Final answer
    x = 4,622,546.21

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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.