Home / 398,930,478,083.19-598,992,828,926.76-345,313,903,783.41

Finding the Fourth Proportional to 398,930,478,083.19, 598,992,828,926.76 and 345,313,903,783.41

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Solution

The fourth proportional to 398,930,478,083.19, 598,992,828,926.76 and 345,313,903,783.41 is: 518,487,715,174.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,930,478,083.19 : 598,992,828,926.76 = 345,313,903,783.41 : x
  2. Step 2: Convert to fraction form
    398,930,478,083.19/598,992,828,926.76 = 345,313,903,783.41/x
  3. Step 3: Cross multiply
    398,930,478,083.19x = 598,992,828,926.76 × 345,313,903,783.41
  4. Step 4: Simplify right side
    398,930,478,083.19x = 206,840,552,094,967,751,770,112
  5. Step 5: Solve for x
    x = 206,840,552,094,967,751,770,112/398,930,478,083.19
  6. Step 6: Final answer
    x = 518,487,715,174.86

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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.