Home / 15,192,989.83-20,966,323.36-8,223,666

Finding the Fourth Proportional to 15,192,989.83, 20,966,323.36 and 8,223,666

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Solution

The fourth proportional to 15,192,989.83, 20,966,323.36 and 8,223,666 is: 11,348,657.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192,989.83 : 20,966,323.36 = 8,223,666 : x
  2. Step 2: Convert to fraction form
    15,192,989.83/20,966,323.36 = 8,223,666/x
  3. Step 3: Cross multiply
    15,192,989.83x = 20,966,323.36 × 8,223,666
  4. Step 4: Simplify right side
    15,192,989.83x = 172,420,040,560,637.75
  5. Step 5: Solve for x
    x = 172,420,040,560,637.75/15,192,989.83
  6. Step 6: Final answer
    x = 11,348,657.67

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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.