Home / 768,734,131.68-1,060,847,819.31-416,302,057.39

Finding the Fourth Proportional to 768,734,131.68, 1,060,847,819.31 and 416,302,057.39

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Solution

The fourth proportional to 768,734,131.68, 1,060,847,819.31 and 416,302,057.39 is: 574,493,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,734,131.68 : 1,060,847,819.31 = 416,302,057.39 : x
  2. Step 2: Convert to fraction form
    768,734,131.68/1,060,847,819.31 = 416,302,057.39/x
  3. Step 3: Cross multiply
    768,734,131.68x = 1,060,847,819.31 × 416,302,057.39
  4. Step 4: Simplify right side
    768,734,131.68x = 441,633,129,756,447,936
  5. Step 5: Solve for x
    x = 441,633,129,756,447,936/768,734,131.68
  6. Step 6: Final answer
    x = 574,493,978.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.