Home / 13,513,196.66-18,647,981.01-7,318,193.10

Finding the Fourth Proportional to 13,513,196.66, 18,647,981.01 and 7,318,193.10

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Solution

The fourth proportional to 13,513,196.66, 18,647,981.01 and 7,318,193.10 is: 10,098,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,196.66 : 18,647,981.01 = 7,318,193.10 : x
  2. Step 2: Convert to fraction form
    13,513,196.66/18,647,981.01 = 7,318,193.10/x
  3. Step 3: Cross multiply
    13,513,196.66x = 18,647,981.01 × 7,318,193.10
  4. Step 4: Simplify right side
    13,513,196.66x = 136,469,525,956,313.03
  5. Step 5: Solve for x
    x = 136,469,525,956,313.03/13,513,196.66
  6. Step 6: Final answer
    x = 10,098,981.71

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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.