Home / 15,389,040-21,245,351.04-11,520,168.96

Finding the Fourth Proportional to 15,389,040, 21,245,351.04 and 11,520,168.96

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Solution

The fourth proportional to 15,389,040, 21,245,351.04 and 11,520,168.96 is: 15,904,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389,040 : 21,245,351.04 = 11,520,168.96 : x
  2. Step 2: Convert to fraction form
    15,389,040/21,245,351.04 = 11,520,168.96/x
  3. Step 3: Cross multiply
    15,389,040x = 21,245,351.04 × 11,520,168.96
  4. Step 4: Simplify right side
    15,389,040x = 244,750,033,595,311.72
  5. Step 5: Solve for x
    x = 244,750,033,595,311.72/15,389,040
  6. Step 6: Final answer
    x = 15,904,178.14

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1.5x scale

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.