Home / 7,221,145.60-9,965,259.66-3,957,888.88

Finding the Fourth Proportional to 7,221,145.60, 9,965,259.66 and 3,957,888.88

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Solution

The fourth proportional to 7,221,145.60, 9,965,259.66 and 3,957,888.88 is: 5,461,929.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221,145.60 : 9,965,259.66 = 3,957,888.88 : x
  2. Step 2: Convert to fraction form
    7,221,145.60/9,965,259.66 = 3,957,888.88/x
  3. Step 3: Cross multiply
    7,221,145.60x = 9,965,259.66 × 3,957,888.88
  4. Step 4: Simplify right side
    7,221,145.60x = 39,441,390,394,626.58
  5. Step 5: Solve for x
    x = 39,441,390,394,626.58/7,221,145.60
  6. Step 6: Final answer
    x = 5,461,929.81

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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.