Home / 509,854,910.40-764,782,365.60-165,055,989.60

Finding the Fourth Proportional to 509,854,910.40, 764,782,365.60 and 165,055,989.60

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Solution

The fourth proportional to 509,854,910.40, 764,782,365.60 and 165,055,989.60 is: 247,583,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,854,910.40 : 764,782,365.60 = 165,055,989.60 : x
  2. Step 2: Convert to fraction form
    509,854,910.40/764,782,365.60 = 165,055,989.60/x
  3. Step 3: Cross multiply
    509,854,910.40x = 764,782,365.60 × 165,055,989.60
  4. Step 4: Simplify right side
    509,854,910.40x = 126,231,910,182,736,992
  5. Step 5: Solve for x
    x = 126,231,910,182,736,992/509,854,910.40
  6. Step 6: Final answer
    x = 247,583,984.40

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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.