Home / 509,968,220.40-764,952,330.60-165,169,299.60

Finding the Fourth Proportional to 509,968,220.40, 764,952,330.60 and 165,169,299.60

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Solution

The fourth proportional to 509,968,220.40, 764,952,330.60 and 165,169,299.60 is: 247,753,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,968,220.40 : 764,952,330.60 = 165,169,299.60 : x
  2. Step 2: Convert to fraction form
    509,968,220.40/764,952,330.60 = 165,169,299.60/x
  3. Step 3: Cross multiply
    509,968,220.40x = 764,952,330.60 × 165,169,299.60
  4. Step 4: Simplify right side
    509,968,220.40x = 126,346,640,672,589,648
  5. Step 5: Solve for x
    x = 126,346,640,672,589,648/509,968,220.40
  6. Step 6: Final answer
    x = 247,753,949.40

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Double scale
Find fourth proportional to 509,968,221.40, 764,952,332.10 and 165,169,300.60
Similar ratio
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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.