Home / 764,939,096.33-1,147,642,812.65-391,711,241.64

Finding the Fourth Proportional to 764,939,096.33, 1,147,642,812.65 and 391,711,241.64

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Solution

The fourth proportional to 764,939,096.33, 1,147,642,812.65 and 391,711,241.64 is: 587,686,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,939,096.33 : 1,147,642,812.65 = 391,711,241.64 : x
  2. Step 2: Convert to fraction form
    764,939,096.33/1,147,642,812.65 = 391,711,241.64/x
  3. Step 3: Cross multiply
    764,939,096.33x = 1,147,642,812.65 × 391,711,241.64
  4. Step 4: Simplify right side
    764,939,096.33x = 449,544,591,100,394,816
  5. Step 5: Solve for x
    x = 449,544,591,100,394,816/764,939,096.33
  6. Step 6: Final answer
    x = 587,686,775.67

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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.