Home / 320,991,057.60-481,486,586.40-206,199,801.60

Finding the Fourth Proportional to 320,991,057.60, 481,486,586.40 and 206,199,801.60

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Solution

The fourth proportional to 320,991,057.60, 481,486,586.40 and 206,199,801.60 is: 309,299,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,991,057.60 : 481,486,586.40 = 206,199,801.60 : x
  2. Step 2: Convert to fraction form
    320,991,057.60/481,486,586.40 = 206,199,801.60/x
  3. Step 3: Cross multiply
    320,991,057.60x = 481,486,586.40 × 206,199,801.60
  4. Step 4: Simplify right side
    320,991,057.60x = 99,282,438,588,741,248
  5. Step 5: Solve for x
    x = 99,282,438,588,741,248/320,991,057.60
  6. Step 6: Final answer
    x = 309,299,702.40

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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.