Home / 613,291,240.20-919,936,860.30-395,613,006.60

Finding the Fourth Proportional to 613,291,240.20, 919,936,860.30 and 395,613,006.60

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Solution

The fourth proportional to 613,291,240.20, 919,936,860.30 and 395,613,006.60 is: 593,419,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,291,240.20 : 919,936,860.30 = 395,613,006.60 : x
  2. Step 2: Convert to fraction form
    613,291,240.20/919,936,860.30 = 395,613,006.60/x
  3. Step 3: Cross multiply
    613,291,240.20x = 919,936,860.30 × 395,613,006.60
  4. Step 4: Simplify right side
    613,291,240.20x = 363,938,987,185,447,168
  5. Step 5: Solve for x
    x = 363,938,987,185,447,168/613,291,240.20
  6. Step 6: Final answer
    x = 593,419,509.90

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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.