Home / 21,791,815.32-30,074,070.78-12,002,257.56

Finding the Fourth Proportional to 21,791,815.32, 30,074,070.78 and 12,002,257.56

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Solution

The fourth proportional to 21,791,815.32, 30,074,070.78 and 12,002,257.56 is: 16,563,867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,791,815.32 : 30,074,070.78 = 12,002,257.56 : x
  2. Step 2: Convert to fraction form
    21,791,815.32/30,074,070.78 = 12,002,257.56/x
  3. Step 3: Cross multiply
    21,791,815.32x = 30,074,070.78 × 12,002,257.56
  4. Step 4: Simplify right side
    21,791,815.32x = 360,956,743,379,230.12
  5. Step 5: Solve for x
    x = 360,956,743,379,230.12/21,791,815.32
  6. Step 6: Final answer
    x = 16,563,867.58

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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.