Home / 213,532,810.80-320,299,216.20-177,819,975.60

Finding the Fourth Proportional to 213,532,810.80, 320,299,216.20 and 177,819,975.60

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Solution

The fourth proportional to 213,532,810.80, 320,299,216.20 and 177,819,975.60 is: 266,729,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,532,810.80 : 320,299,216.20 = 177,819,975.60 : x
  2. Step 2: Convert to fraction form
    213,532,810.80/320,299,216.20 = 177,819,975.60/x
  3. Step 3: Cross multiply
    213,532,810.80x = 320,299,216.20 × 177,819,975.60
  4. Step 4: Simplify right side
    213,532,810.80x = 56,955,598,809,383,120
  5. Step 5: Solve for x
    x = 56,955,598,809,383,120/213,532,810.80
  6. Step 6: Final answer
    x = 266,729,963.40

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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.