Home / 991,399,192.22-1,486,783,287.78-327,289,558.96

Finding the Fourth Proportional to 991,399,192.22, 1,486,783,287.78 and 327,289,558.96

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Solution

The fourth proportional to 991,399,192.22, 1,486,783,287.78 and 327,289,558.96 is: 490,830,182.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,399,192.22 : 1,486,783,287.78 = 327,289,558.96 : x
  2. Step 2: Convert to fraction form
    991,399,192.22/1,486,783,287.78 = 327,289,558.96/x
  3. Step 3: Cross multiply
    991,399,192.22x = 1,486,783,287.78 × 327,289,558.96
  4. Step 4: Simplify right side
    991,399,192.22x = 486,608,646,526,614,912
  5. Step 5: Solve for x
    x = 486,608,646,526,614,912/991,399,192.22
  6. Step 6: Final answer
    x = 490,830,182.58

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1.5x scale

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.