Home / 13,965,816.78-19,269,938.75-8,163,476.15

Finding the Fourth Proportional to 13,965,816.78, 19,269,938.75 and 8,163,476.15

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Solution

The fourth proportional to 13,965,816.78, 19,269,938.75 and 8,163,476.15 is: 11,263,908.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965,816.78 : 19,269,938.75 = 8,163,476.15 : x
  2. Step 2: Convert to fraction form
    13,965,816.78/19,269,938.75 = 8,163,476.15/x
  3. Step 3: Cross multiply
    13,965,816.78x = 19,269,938.75 × 8,163,476.15
  4. Step 4: Simplify right side
    13,965,816.78x = 157,309,685,369,819.66
  5. Step 5: Solve for x
    x = 157,309,685,369,819.66/13,965,816.78
  6. Step 6: Final answer
    x = 11,263,908.72

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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.