Home / 1,400,438,500.43-2,100,059,802.71-810,635,851.22

Finding the Fourth Proportional to 1,400,438,500.43, 2,100,059,802.71 and 810,635,851.22

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Solution

The fourth proportional to 1,400,438,500.43, 2,100,059,802.71 and 810,635,851.22 is: 1,215,607,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,438,500.43 : 2,100,059,802.71 = 810,635,851.22 : x
  2. Step 2: Convert to fraction form
    1,400,438,500.43/2,100,059,802.71 = 810,635,851.22/x
  3. Step 3: Cross multiply
    1,400,438,500.43x = 2,100,059,802.71 × 810,635,851.22
  4. Step 4: Simplify right side
    1,400,438,500.43x = 1,702,383,765,768,902,144
  5. Step 5: Solve for x
    x = 1,702,383,765,768,902,144/1,400,438,500.43
  6. Step 6: Final answer
    x = 1,215,607,658.06

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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.