Home / 10,286,556.88-15,428,752.80-4,221,929.92

Finding the Fourth Proportional to 10,286,556.88, 15,428,752.80 and 4,221,929.92

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Solution

The fourth proportional to 10,286,556.88, 15,428,752.80 and 4,221,929.92 is: 6,332,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286,556.88 : 15,428,752.80 = 4,221,929.92 : x
  2. Step 2: Convert to fraction form
    10,286,556.88/15,428,752.80 = 4,221,929.92/x
  3. Step 3: Cross multiply
    10,286,556.88x = 15,428,752.80 × 4,221,929.92
  4. Step 4: Simplify right side
    10,286,556.88x = 65,139,113,074,603.78
  5. Step 5: Solve for x
    x = 65,139,113,074,603.78/10,286,556.88
  6. Step 6: Final answer
    x = 6,332,450.58

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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.