Home / 111,380,800.80-167,071,201.20-81,147,712.80

Finding the Fourth Proportional to 111,380,800.80, 167,071,201.20 and 81,147,712.80

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Solution

The fourth proportional to 111,380,800.80, 167,071,201.20 and 81,147,712.80 is: 121,721,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,380,800.80 : 167,071,201.20 = 81,147,712.80 : x
  2. Step 2: Convert to fraction form
    111,380,800.80/167,071,201.20 = 81,147,712.80/x
  3. Step 3: Cross multiply
    111,380,800.80x = 167,071,201.20 × 81,147,712.80
  4. Step 4: Simplify right side
    111,380,800.80x = 13,557,445,852,128,614
  5. Step 5: Solve for x
    x = 13,557,445,852,128,614/111,380,800.80
  6. Step 6: Final answer
    x = 121,721,569.20

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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.