Home / 509,968,298.40-764,952,447.60-165,169,377.60

Finding the Fourth Proportional to 509,968,298.40, 764,952,447.60 and 165,169,377.60

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Solution

The fourth proportional to 509,968,298.40, 764,952,447.60 and 165,169,377.60 is: 247,754,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,968,298.40 : 764,952,447.60 = 165,169,377.60 : x
  2. Step 2: Convert to fraction form
    509,968,298.40/764,952,447.60 = 165,169,377.60/x
  3. Step 3: Cross multiply
    509,968,298.40x = 764,952,447.60 × 165,169,377.60
  4. Step 4: Simplify right side
    509,968,298.40x = 126,346,719,663,688,608
  5. Step 5: Solve for x
    x = 126,346,719,663,688,608/509,968,298.40
  6. Step 6: Final answer
    x = 247,754,066.40

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Double scale
Find fourth proportional to 509,968,299.40, 764,952,449.10 and 165,169,378.60
Similar ratio
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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.