Home / 18,381,401.40-25,366,521.66-10,122,231.72

Finding the Fourth Proportional to 18,381,401.40, 25,366,521.66 and 10,122,231.72

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Solution

The fourth proportional to 18,381,401.40, 25,366,521.66 and 10,122,231.72 is: 13,968,783.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,401.40 : 25,366,521.66 = 10,122,231.72 : x
  2. Step 2: Convert to fraction form
    18,381,401.40/25,366,521.66 = 10,122,231.72/x
  3. Step 3: Cross multiply
    18,381,401.40x = 25,366,521.66 × 10,122,231.72
  4. Step 4: Simplify right side
    18,381,401.40x = 256,765,810,172,919.06
  5. Step 5: Solve for x
    x = 256,765,810,172,919.06/18,381,401.40
  6. Step 6: Final answer
    x = 13,968,783.15

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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.