Home / 15,787,007.28-21,786,069.84-8,543,663.28

Finding the Fourth Proportional to 15,787,007.28, 21,786,069.84 and 8,543,663.28

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Solution

The fourth proportional to 15,787,007.28, 21,786,069.84 and 8,543,663.28 is: 11,790,255.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787,007.28 : 21,786,069.84 = 8,543,663.28 : x
  2. Step 2: Convert to fraction form
    15,787,007.28/21,786,069.84 = 8,543,663.28/x
  3. Step 3: Cross multiply
    15,787,007.28x = 21,786,069.84 × 8,543,663.28
  4. Step 4: Simplify right side
    15,787,007.28x = 186,132,844,907,523.47
  5. Step 5: Solve for x
    x = 186,132,844,907,523.47/15,787,007.28
  6. Step 6: Final answer
    x = 11,790,255.21

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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.