Home / 157,448,089.32-217,321,579.75-91,389,869.55

Finding the Fourth Proportional to 157,448,089.32, 217,321,579.75 and 91,389,869.55

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Solution

The fourth proportional to 157,448,089.32, 217,321,579.75 and 91,389,869.55 is: 126,143,104.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,448,089.32 : 217,321,579.75 = 91,389,869.55 : x
  2. Step 2: Convert to fraction form
    157,448,089.32/217,321,579.75 = 91,389,869.55/x
  3. Step 3: Cross multiply
    157,448,089.32x = 217,321,579.75 × 91,389,869.55
  4. Step 4: Simplify right side
    157,448,089.32x = 19,860,990,823,752,420
  5. Step 5: Solve for x
    x = 19,860,990,823,752,420/157,448,089.32
  6. Step 6: Final answer
    x = 126,143,104.75

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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.