Home / 338,321,080.80-507,481,621.20-320,853,074.40

Finding the Fourth Proportional to 338,321,080.80, 507,481,621.20 and 320,853,074.40

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Solution

The fourth proportional to 338,321,080.80, 507,481,621.20 and 320,853,074.40 is: 481,279,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,321,080.80 : 507,481,621.20 = 320,853,074.40 : x
  2. Step 2: Convert to fraction form
    338,321,080.80/507,481,621.20 = 320,853,074.40/x
  3. Step 3: Cross multiply
    338,321,080.80x = 507,481,621.20 × 320,853,074.40
  4. Step 4: Simplify right side
    338,321,080.80x = 162,827,038,363,516,192
  5. Step 5: Solve for x
    x = 162,827,038,363,516,192/338,321,080.80
  6. Step 6: Final answer
    x = 481,279,611.60

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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.