Home / 66,734,970.48-100,065,963.82-52,990,221.30

Finding the Fourth Proportional to 66,734,970.48, 100,065,963.82 and 52,990,221.30

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Solution

The fourth proportional to 66,734,970.48, 100,065,963.82 and 52,990,221.30 is: 79,456,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,734,970.48 : 100,065,963.82 = 52,990,221.30 : x
  2. Step 2: Convert to fraction form
    66,734,970.48/100,065,963.82 = 52,990,221.30/x
  3. Step 3: Cross multiply
    66,734,970.48x = 100,065,963.82 × 52,990,221.30
  4. Step 4: Simplify right side
    66,734,970.48x = 5,302,517,567,419,593
  5. Step 5: Solve for x
    x = 5,302,517,567,419,593/66,734,970.48
  6. Step 6: Final answer
    x = 79,456,355.93

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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.