Home / 13,835,986.20-20,697,992.10-12,156,370.20

Finding the Fourth Proportional to 13,835,986.20, 20,697,992.10 and 12,156,370.20

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Solution

The fourth proportional to 13,835,986.20, 20,697,992.10 and 12,156,370.20 is: 18,185,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835,986.20 : 20,697,992.10 = 12,156,370.20 : x
  2. Step 2: Convert to fraction form
    13,835,986.20/20,697,992.10 = 12,156,370.20/x
  3. Step 3: Cross multiply
    13,835,986.20x = 20,697,992.10 × 12,156,370.20
  4. Step 4: Simplify right side
    13,835,986.20x = 251,612,454,364,275.44
  5. Step 5: Solve for x
    x = 251,612,454,364,275.44/13,835,986.20
  6. Step 6: Final answer
    x = 18,185,364.65

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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.