Home / 764,939,068.04-1,147,642,770.20-391,711,213.39

Finding the Fourth Proportional to 764,939,068.04, 1,147,642,770.20 and 391,711,213.39

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Solution

The fourth proportional to 764,939,068.04, 1,147,642,770.20 and 391,711,213.39 is: 587,686,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,939,068.04 : 1,147,642,770.20 = 391,711,213.39 : x
  2. Step 2: Convert to fraction form
    764,939,068.04/1,147,642,770.20 = 391,711,213.39/x
  3. Step 3: Cross multiply
    764,939,068.04x = 1,147,642,770.20 × 391,711,213.39
  4. Step 4: Simplify right side
    764,939,068.04x = 449,544,542,055,716,800
  5. Step 5: Solve for x
    x = 449,544,542,055,716,800/764,939,068.04
  6. Step 6: Final answer
    x = 587,686,733.28

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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.