Home / 13,643,013.72-18,827,243.46-7,531,311

Finding the Fourth Proportional to 13,643,013.72, 18,827,243.46 and 7,531,311

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Solution

The fourth proportional to 13,643,013.72, 18,827,243.46 and 7,531,311 is: 10,393,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643,013.72 : 18,827,243.46 = 7,531,311 : x
  2. Step 2: Convert to fraction form
    13,643,013.72/18,827,243.46 = 7,531,311/x
  3. Step 3: Cross multiply
    13,643,013.72x = 18,827,243.46 × 7,531,311
  4. Step 4: Simplify right side
    13,643,013.72x = 141,793,825,769,976.06
  5. Step 5: Solve for x
    x = 141,793,825,769,976.06/13,643,013.72
  6. Step 6: Final answer
    x = 10,393,145.44

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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.