Home / 195,970,380.66-270,301,438.77-128,967,991.27

Finding the Fourth Proportional to 195,970,380.66, 270,301,438.77 and 128,967,991.27

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Solution

The fourth proportional to 195,970,380.66, 270,301,438.77 and 128,967,991.27 is: 177,885,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,970,380.66 : 270,301,438.77 = 128,967,991.27 : x
  2. Step 2: Convert to fraction form
    195,970,380.66/270,301,438.77 = 128,967,991.27/x
  3. Step 3: Cross multiply
    195,970,380.66x = 270,301,438.77 × 128,967,991.27
  4. Step 4: Simplify right side
    195,970,380.66x = 34,860,233,594,882,044
  5. Step 5: Solve for x
    x = 34,860,233,594,882,044/195,970,380.66
  6. Step 6: Final answer
    x = 177,885,216.52

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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.