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Finding the Fourth Proportional to 11,648,608.40, 17,472,912.60 and 10,987,259.60

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Solution

The fourth proportional to 11,648,608.40, 17,472,912.60 and 10,987,259.60 is: 16,480,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,648,608.40 : 17,472,912.60 = 10,987,259.60 : x
  2. Step 2: Convert to fraction form
    11,648,608.40/17,472,912.60 = 10,987,259.60/x
  3. Step 3: Cross multiply
    11,648,608.40x = 17,472,912.60 × 10,987,259.60
  4. Step 4: Simplify right side
    11,648,608.40x = 191,979,426,704,310.97
  5. Step 5: Solve for x
    x = 191,979,426,704,310.97/11,648,608.40
  6. Step 6: Final answer
    x = 16,480,889.40

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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.