Home / 172,199,901.66-258,299,871.93-69,964,008.54

Finding the Fourth Proportional to 172,199,901.66, 258,299,871.93 and 69,964,008.54

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Solution

The fourth proportional to 172,199,901.66, 258,299,871.93 and 69,964,008.54 is: 104,946,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,199,901.66 : 258,299,871.93 = 69,964,008.54 : x
  2. Step 2: Convert to fraction form
    172,199,901.66/258,299,871.93 = 69,964,008.54/x
  3. Step 3: Cross multiply
    172,199,901.66x = 258,299,871.93 × 69,964,008.54
  4. Step 4: Simplify right side
    172,199,901.66x = 18,071,694,445,591,428
  5. Step 5: Solve for x
    x = 18,071,694,445,591,428/172,199,901.66
  6. Step 6: Final answer
    x = 104,946,020.71

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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.