Home / 172,440,491.36-258,658,300.78-80,272,678.76

Finding the Fourth Proportional to 172,440,491.36, 258,658,300.78 and 80,272,678.76

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Solution

The fourth proportional to 172,440,491.36, 258,658,300.78 and 80,272,678.76 is: 120,407,884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,440,491.36 : 258,658,300.78 = 80,272,678.76 : x
  2. Step 2: Convert to fraction form
    172,440,491.36/258,658,300.78 = 80,272,678.76/x
  3. Step 3: Cross multiply
    172,440,491.36x = 258,658,300.78 × 80,272,678.76
  4. Step 4: Simplify right side
    172,440,491.36x = 20,763,194,687,120,400
  5. Step 5: Solve for x
    x = 20,763,194,687,120,400/172,440,491.36
  6. Step 6: Final answer
    x = 120,407,884.04

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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.