Home / 1,442,194,781.36-1,990,228,798.24-782,145,059.36

Finding the Fourth Proportional to 1,442,194,781.36, 1,990,228,798.24 and 782,145,059.36

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Solution

The fourth proportional to 1,442,194,781.36, 1,990,228,798.24 and 782,145,059.36 is: 1,079,360,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,194,781.36 : 1,990,228,798.24 = 782,145,059.36 : x
  2. Step 2: Convert to fraction form
    1,442,194,781.36/1,990,228,798.24 = 782,145,059.36/x
  3. Step 3: Cross multiply
    1,442,194,781.36x = 1,990,228,798.24 × 782,145,059.36
  4. Step 4: Simplify right side
    1,442,194,781.36x = 1,556,647,621,527,499,776
  5. Step 5: Solve for x
    x = 1,556,647,621,527,499,776/1,442,194,781.36
  6. Step 6: Final answer
    x = 1,079,360,181.89

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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.