Home / 172,440,490.36-258,658,299.28-80,272,677.76

Finding the Fourth Proportional to 172,440,490.36, 258,658,299.28 and 80,272,677.76

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Solution

The fourth proportional to 172,440,490.36, 258,658,299.28 and 80,272,677.76 is: 120,407,882.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,440,490.36 : 258,658,299.28 = 80,272,677.76 : x
  2. Step 2: Convert to fraction form
    172,440,490.36/258,658,299.28 = 80,272,677.76/x
  3. Step 3: Cross multiply
    172,440,490.36x = 258,658,299.28 × 80,272,677.76
  4. Step 4: Simplify right side
    172,440,490.36x = 20,763,194,308,053,080
  5. Step 5: Solve for x
    x = 20,763,194,308,053,080/172,440,490.36
  6. Step 6: Final answer
    x = 120,407,882.54

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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.