Home / 121,145,805.72-167,180,339.16-66,141,662.04

Finding the Fourth Proportional to 121,145,805.72, 167,180,339.16 and 66,141,662.04

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Solution

The fourth proportional to 121,145,805.72, 167,180,339.16 and 66,141,662.04 is: 91,275,017.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,145,805.72 : 167,180,339.16 = 66,141,662.04 : x
  2. Step 2: Convert to fraction form
    121,145,805.72/167,180,339.16 = 66,141,662.04/x
  3. Step 3: Cross multiply
    121,145,805.72x = 167,180,339.16 × 66,141,662.04
  4. Step 4: Simplify right side
    121,145,805.72x = 11,057,585,492,453,298
  5. Step 5: Solve for x
    x = 11,057,585,492,453,298/121,145,805.72
  6. Step 6: Final answer
    x = 91,275,017.13

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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.