Home / 312,576,012.35-468,864,018.53-159,693,631.55

Finding the Fourth Proportional to 312,576,012.35, 468,864,018.53 and 159,693,631.55

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Solution

The fourth proportional to 312,576,012.35, 468,864,018.53 and 159,693,631.55 is: 239,540,447.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,576,012.35 : 468,864,018.53 = 159,693,631.55 : x
  2. Step 2: Convert to fraction form
    312,576,012.35/468,864,018.53 = 159,693,631.55/x
  3. Step 3: Cross multiply
    312,576,012.35x = 468,864,018.53 × 159,693,631.55
  4. Step 4: Simplify right side
    312,576,012.35x = 74,874,597,821,383,728
  5. Step 5: Solve for x
    x = 74,874,597,821,383,728/312,576,012.35
  6. Step 6: Final answer
    x = 239,540,447.33

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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.