Home / 13,513,711.44-18,643,732.68-7,712,815.44

Finding the Fourth Proportional to 13,513,711.44, 18,643,732.68 and 7,712,815.44

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Solution

The fourth proportional to 13,513,711.44, 18,643,732.68 and 7,712,815.44 is: 10,640,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,711.44 : 18,643,732.68 = 7,712,815.44 : x
  2. Step 2: Convert to fraction form
    13,513,711.44/18,643,732.68 = 7,712,815.44/x
  3. Step 3: Cross multiply
    13,513,711.44x = 18,643,732.68 × 7,712,815.44
  4. Step 4: Simplify right side
    13,513,711.44x = 143,795,669,273,536.59
  5. Step 5: Solve for x
    x = 143,795,669,273,536.59/13,513,711.44
  6. Step 6: Final answer
    x = 10,640,723.68

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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.