Home / 509,951,149,406.70-764,926,724,110.05-211,677,549,816.30

Finding the Fourth Proportional to 509,951,149,406.70, 764,926,724,110.05 and 211,677,549,816.30

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Solution

The fourth proportional to 509,951,149,406.70, 764,926,724,110.05 and 211,677,549,816.30 is: 317,516,324,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,951,149,406.70 : 764,926,724,110.05 = 211,677,549,816.30 : x
  2. Step 2: Convert to fraction form
    509,951,149,406.70/764,926,724,110.05 = 211,677,549,816.30/x
  3. Step 3: Cross multiply
    509,951,149,406.70x = 764,926,724,110.05 × 211,677,549,816.30
  4. Step 4: Simplify right side
    509,951,149,406.70x = 161,917,814,748,624,292,151,296
  5. Step 5: Solve for x
    x = 161,917,814,748,624,292,151,296/509,951,149,406.70
  6. Step 6: Final answer
    x = 317,516,324,724.45

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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.