Home / 81,467,485.80-122,201,228.70-32,920,350.45

Finding the Fourth Proportional to 81,467,485.80, 122,201,228.70 and 32,920,350.45

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Solution

The fourth proportional to 81,467,485.80, 122,201,228.70 and 32,920,350.45 is: 49,380,525.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,467,485.80 : 122,201,228.70 = 32,920,350.45 : x
  2. Step 2: Convert to fraction form
    81,467,485.80/122,201,228.70 = 32,920,350.45/x
  3. Step 3: Cross multiply
    81,467,485.80x = 122,201,228.70 × 32,920,350.45
  4. Step 4: Simplify right side
    81,467,485.80x = 4,022,907,274,224,598
  5. Step 5: Solve for x
    x = 4,022,907,274,224,598/81,467,485.80
  6. Step 6: Final answer
    x = 49,380,525.68

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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.