Home / 13,196,780.91-18,206,361.99-8,232,333.28

Finding the Fourth Proportional to 13,196,780.91, 18,206,361.99 and 8,232,333.28

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Solution

The fourth proportional to 13,196,780.91, 18,206,361.99 and 8,232,333.28 is: 11,357,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,196,780.91 : 18,206,361.99 = 8,232,333.28 : x
  2. Step 2: Convert to fraction form
    13,196,780.91/18,206,361.99 = 8,232,333.28/x
  3. Step 3: Cross multiply
    13,196,780.91x = 18,206,361.99 × 8,232,333.28
  4. Step 4: Simplify right side
    13,196,780.91x = 149,880,839,718,004.03
  5. Step 5: Solve for x
    x = 149,880,839,718,004.03/13,196,780.91
  6. Step 6: Final answer
    x = 11,357,378.80

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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.