Home / 13,324,513.50-18,387,955.37-7,817,982.05

Finding the Fourth Proportional to 13,324,513.50, 18,387,955.37 and 7,817,982.05

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Solution

The fourth proportional to 13,324,513.50, 18,387,955.37 and 7,817,982.05 is: 10,788,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324,513.50 : 18,387,955.37 = 7,817,982.05 : x
  2. Step 2: Convert to fraction form
    13,324,513.50/18,387,955.37 = 7,817,982.05/x
  3. Step 3: Cross multiply
    13,324,513.50x = 18,387,955.37 × 7,817,982.05
  4. Step 4: Simplify right side
    13,324,513.50x = 143,756,705,084,375.94
  5. Step 5: Solve for x
    x = 143,756,705,084,375.94/13,324,513.50
  6. Step 6: Final answer
    x = 10,788,889.60

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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.