Home / 28,812,297.78-43,218,519.57-11,772,970.72

Finding the Fourth Proportional to 28,812,297.78, 43,218,519.57 and 11,772,970.72

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Solution

The fourth proportional to 28,812,297.78, 43,218,519.57 and 11,772,970.72 is: 17,659,485.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812,297.78 : 43,218,519.57 = 11,772,970.72 : x
  2. Step 2: Convert to fraction form
    28,812,297.78/43,218,519.57 = 11,772,970.72/x
  3. Step 3: Cross multiply
    28,812,297.78x = 43,218,519.57 × 11,772,970.72
  4. Step 4: Simplify right side
    28,812,297.78x = 508,810,365,351,310.69
  5. Step 5: Solve for x
    x = 508,810,365,351,310.69/28,812,297.78
  6. Step 6: Final answer
    x = 17,659,485.86

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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.