Home / 20,521,660.03-28,313,014.39-11,819,658.43

Finding the Fourth Proportional to 20,521,660.03, 28,313,014.39 and 11,819,658.43

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Solution

The fourth proportional to 20,521,660.03, 28,313,014.39 and 11,819,658.43 is: 16,307,168.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,521,660.03 : 28,313,014.39 = 11,819,658.43 : x
  2. Step 2: Convert to fraction form
    20,521,660.03/28,313,014.39 = 11,819,658.43/x
  3. Step 3: Cross multiply
    20,521,660.03x = 28,313,014.39 × 11,819,658.43
  4. Step 4: Simplify right side
    20,521,660.03x = 334,650,159,213,474.81
  5. Step 5: Solve for x
    x = 334,650,159,213,474.81/20,521,660.03
  6. Step 6: Final answer
    x = 16,307,168.07

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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.