Home / 408,077,805.80-613,311,102.30-355,524,487.40

Finding the Fourth Proportional to 408,077,805.80, 613,311,102.30 and 355,524,487.40

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Solution

The fourth proportional to 408,077,805.80, 613,311,102.30 and 355,524,487.40 is: 534,327,307.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,077,805.80 : 613,311,102.30 = 355,524,487.40 : x
  2. Step 2: Convert to fraction form
    408,077,805.80/613,311,102.30 = 355,524,487.40/x
  3. Step 3: Cross multiply
    408,077,805.80x = 613,311,102.30 × 355,524,487.40
  4. Step 4: Simplify right side
    408,077,805.80x = 218,047,115,261,936,416
  5. Step 5: Solve for x
    x = 218,047,115,261,936,416/408,077,805.80
  6. Step 6: Final answer
    x = 534,327,307.59

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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.