Home / 13,513,020.72-18,647,758.35-7,711,653.30

Finding the Fourth Proportional to 13,513,020.72, 18,647,758.35 and 7,711,653.30

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Solution

The fourth proportional to 13,513,020.72, 18,647,758.35 and 7,711,653.30 is: 10,641,961.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,020.72 : 18,647,758.35 = 7,711,653.30 : x
  2. Step 2: Convert to fraction form
    13,513,020.72/18,647,758.35 = 7,711,653.30/x
  3. Step 3: Cross multiply
    13,513,020.72x = 18,647,758.35 × 7,711,653.30
  4. Step 4: Simplify right side
    13,513,020.72x = 143,805,047,217,380.06
  5. Step 5: Solve for x
    x = 143,805,047,217,380.06/13,513,020.72
  6. Step 6: Final answer
    x = 10,641,961.57

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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.