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Finding the Fourth Proportional to 10,965,273.75, 15,129,978.26 and 7,097,258.07

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Solution

The fourth proportional to 10,965,273.75, 15,129,978.26 and 7,097,258.07 is: 9,792,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965,273.75 : 15,129,978.26 = 7,097,258.07 : x
  2. Step 2: Convert to fraction form
    10,965,273.75/15,129,978.26 = 7,097,258.07/x
  3. Step 3: Cross multiply
    10,965,273.75x = 15,129,978.26 × 7,097,258.07
  4. Step 4: Simplify right side
    10,965,273.75x = 107,381,360,269,223.28
  5. Step 5: Solve for x
    x = 107,381,360,269,223.28/10,965,273.75
  6. Step 6: Final answer
    x = 9,792,857.23

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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.