Home / 1,291,633,452.68-1,935,876,172.32-669,505,699.69

Finding the Fourth Proportional to 1,291,633,452.68, 1,935,876,172.32 and 669,505,699.69

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Solution

The fourth proportional to 1,291,633,452.68, 1,935,876,172.32 and 669,505,699.69 is: 1,003,442,678.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,633,452.68 : 1,935,876,172.32 = 669,505,699.69 : x
  2. Step 2: Convert to fraction form
    1,291,633,452.68/1,935,876,172.32 = 669,505,699.69/x
  3. Step 3: Cross multiply
    1,291,633,452.68x = 1,935,876,172.32 × 669,505,699.69
  4. Step 4: Simplify right side
    1,291,633,452.68x = 1,296,080,131,259,840,256
  5. Step 5: Solve for x
    x = 1,296,080,131,259,840,256/1,291,633,452.68
  6. Step 6: Final answer
    x = 1,003,442,678.39

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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.