Home / 13,285,942.84-18,335,956.26-8,132,709.88

Finding the Fourth Proportional to 13,285,942.84, 18,335,956.26 and 8,132,709.88

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Solution

The fourth proportional to 13,285,942.84, 18,335,956.26 and 8,132,709.88 is: 11,223,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,942.84 : 18,335,956.26 = 8,132,709.88 : x
  2. Step 2: Convert to fraction form
    13,285,942.84/18,335,956.26 = 8,132,709.88/x
  3. Step 3: Cross multiply
    13,285,942.84x = 18,335,956.26 × 8,132,709.88
  4. Step 4: Simplify right side
    13,285,942.84x = 149,121,012,634,949.88
  5. Step 5: Solve for x
    x = 149,121,012,634,949.88/13,285,942.84
  6. Step 6: Final answer
    x = 11,223,969.16

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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.