Home / 509,951,149,419.70-764,926,724,129.55-211,677,549,829.30

Finding the Fourth Proportional to 509,951,149,419.70, 764,926,724,129.55 and 211,677,549,829.30

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Solution

The fourth proportional to 509,951,149,419.70, 764,926,724,129.55 and 211,677,549,829.30 is: 317,516,324,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,951,149,419.70 : 764,926,724,129.55 = 211,677,549,829.30 : x
  2. Step 2: Convert to fraction form
    509,951,149,419.70/764,926,724,129.55 = 211,677,549,829.30/x
  3. Step 3: Cross multiply
    509,951,149,419.70x = 764,926,724,129.55 × 211,677,549,829.30
  4. Step 4: Simplify right side
    509,951,149,419.70x = 161,917,814,762,696,047,853,568
  5. Step 5: Solve for x
    x = 161,917,814,762,696,047,853,568/509,951,149,419.70
  6. Step 6: Final answer
    x = 317,516,324,743.95

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Double scale
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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.