Home / 71,901,189.07-107,852,571.06-20,783,650.75

Finding the Fourth Proportional to 71,901,189.07, 107,852,571.06 and 20,783,650.75

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Solution

The fourth proportional to 71,901,189.07, 107,852,571.06 and 20,783,650.75 is: 31,175,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,901,189.07 : 107,852,571.06 = 20,783,650.75 : x
  2. Step 2: Convert to fraction form
    71,901,189.07/107,852,571.06 = 20,783,650.75/x
  3. Step 3: Cross multiply
    71,901,189.07x = 107,852,571.06 × 20,783,650.75
  4. Step 4: Simplify right side
    71,901,189.07x = 2,241,570,169,400,597.25
  5. Step 5: Solve for x
    x = 2,241,570,169,400,597.25/71,901,189.07
  6. Step 6: Final answer
    x = 31,175,703.75

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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.