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Finding the Fourth Proportional to 69,525,829.60, 104,400,718.80 and 52,505,720.80

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Solution

The fourth proportional to 69,525,829.60, 104,400,718.80 and 52,505,720.80 is: 78,843,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,525,829.60 : 104,400,718.80 = 52,505,720.80 : x
  2. Step 2: Convert to fraction form
    69,525,829.60/104,400,718.80 = 52,505,720.80/x
  3. Step 3: Cross multiply
    69,525,829.60x = 104,400,718.80 × 52,505,720.80
  4. Step 4: Simplify right side
    69,525,829.60x = 5,481,634,992,632,111
  5. Step 5: Solve for x
    x = 5,481,634,992,632,111/69,525,829.60
  6. Step 6: Final answer
    x = 78,843,143.97

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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.