Home / 13,513,286.43-18,648,104.81-7,318,282.94

Finding the Fourth Proportional to 13,513,286.43, 18,648,104.81 and 7,318,282.94

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Solution

The fourth proportional to 13,513,286.43, 18,648,104.81 and 7,318,282.94 is: 10,099,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,286.43 : 18,648,104.81 = 7,318,282.94 : x
  2. Step 2: Convert to fraction form
    13,513,286.43/18,648,104.81 = 7,318,282.94/x
  3. Step 3: Cross multiply
    13,513,286.43x = 18,648,104.81 × 7,318,282.94
  4. Step 4: Simplify right side
    13,513,286.43x = 136,472,107,164,523
  5. Step 5: Solve for x
    x = 136,472,107,164,523/13,513,286.43
  6. Step 6: Final answer
    x = 10,099,105.64

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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.