Home / 20,723,600.80-31,085,401.20-13,165,328.80

Finding the Fourth Proportional to 20,723,600.80, 31,085,401.20 and 13,165,328.80

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Solution

The fourth proportional to 20,723,600.80, 31,085,401.20 and 13,165,328.80 is: 19,747,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,600.80 : 31,085,401.20 = 13,165,328.80 : x
  2. Step 2: Convert to fraction form
    20,723,600.80/31,085,401.20 = 13,165,328.80/x
  3. Step 3: Cross multiply
    20,723,600.80x = 31,085,401.20 × 13,165,328.80
  4. Step 4: Simplify right side
    20,723,600.80x = 409,249,527,677,914.56
  5. Step 5: Solve for x
    x = 409,249,527,677,914.56/20,723,600.80
  6. Step 6: Final answer
    x = 19,747,993.20

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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.