Home / 509,854,918.40-764,782,377.60-165,055,997.60

Finding the Fourth Proportional to 509,854,918.40, 764,782,377.60 and 165,055,997.60

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Solution

The fourth proportional to 509,854,918.40, 764,782,377.60 and 165,055,997.60 is: 247,583,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,854,918.40 : 764,782,377.60 = 165,055,997.60 : x
  2. Step 2: Convert to fraction form
    509,854,918.40/764,782,377.60 = 165,055,997.60/x
  3. Step 3: Cross multiply
    509,854,918.40x = 764,782,377.60 × 165,055,997.60
  4. Step 4: Simplify right side
    509,854,918.40x = 126,231,918,281,667,888
  5. Step 5: Solve for x
    x = 126,231,918,281,667,888/509,854,918.40
  6. Step 6: Final answer
    x = 247,583,996.40

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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.