Home / 7,218,569.36-9,961,628.13-3,955,357.60

Finding the Fourth Proportional to 7,218,569.36, 9,961,628.13 and 3,955,357.60

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Solution

The fourth proportional to 7,218,569.36, 9,961,628.13 and 3,955,357.60 is: 5,458,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,569.36 : 9,961,628.13 = 3,955,357.60 : x
  2. Step 2: Convert to fraction form
    7,218,569.36/9,961,628.13 = 3,955,357.60/x
  3. Step 3: Cross multiply
    7,218,569.36x = 9,961,628.13 × 3,955,357.60
  4. Step 4: Simplify right side
    7,218,569.36x = 39,401,801,532,369.29
  5. Step 5: Solve for x
    x = 39,401,801,532,369.29/7,218,569.36
  6. Step 6: Final answer
    x = 5,458,394.81

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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.