Home / 168,546,922.30-252,820,383.45-86,551,480.90

Finding the Fourth Proportional to 168,546,922.30, 252,820,383.45 and 86,551,480.90

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Solution

The fourth proportional to 168,546,922.30, 252,820,383.45 and 86,551,480.90 is: 129,827,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,546,922.30 : 252,820,383.45 = 86,551,480.90 : x
  2. Step 2: Convert to fraction form
    168,546,922.30/252,820,383.45 = 86,551,480.90/x
  3. Step 3: Cross multiply
    168,546,922.30x = 252,820,383.45 × 86,551,480.90
  4. Step 4: Simplify right side
    168,546,922.30x = 21,881,978,589,303,352
  5. Step 5: Solve for x
    x = 21,881,978,589,303,352/168,546,922.30
  6. Step 6: Final answer
    x = 129,827,221.35

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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.