Home / 7,221,699.80-9,966,066.13-3,914,099.66

Finding the Fourth Proportional to 7,221,699.80, 9,966,066.13 and 3,914,099.66

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Solution

The fourth proportional to 7,221,699.80, 9,966,066.13 and 3,914,099.66 is: 5,401,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221,699.80 : 9,966,066.13 = 3,914,099.66 : x
  2. Step 2: Convert to fraction form
    7,221,699.80/9,966,066.13 = 3,914,099.66/x
  3. Step 3: Cross multiply
    7,221,699.80x = 9,966,066.13 × 3,914,099.66
  4. Step 4: Simplify right side
    7,221,699.80x = 39,008,176,028,727.68
  5. Step 5: Solve for x
    x = 39,008,176,028,727.68/7,221,699.80
  6. Step 6: Final answer
    x = 5,401,522.79

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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.