Home / 18,711,200.70-28,045,805.85-10,628,048.70

Finding the Fourth Proportional to 18,711,200.70, 28,045,805.85 and 10,628,048.70

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Solution

The fourth proportional to 18,711,200.70, 28,045,805.85 and 10,628,048.70 is: 15,930,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,200.70 : 28,045,805.85 = 10,628,048.70 : x
  2. Step 2: Convert to fraction form
    18,711,200.70/28,045,805.85 = 10,628,048.70/x
  3. Step 3: Cross multiply
    18,711,200.70x = 28,045,805.85 × 10,628,048.70
  4. Step 4: Simplify right side
    18,711,200.70x = 298,072,190,404,544.88
  5. Step 5: Solve for x
    x = 298,072,190,404,544.88/18,711,200.70
  6. Step 6: Final answer
    x = 15,930,147.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.