Home / 547,141,194.89-820,762,245.17-178,678,078.25

Finding the Fourth Proportional to 547,141,194.89, 820,762,245.17 and 178,678,078.25

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Solution

The fourth proportional to 547,141,194.89, 820,762,245.17 and 178,678,078.25 is: 268,033,593.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,141,194.89 : 820,762,245.17 = 178,678,078.25 : x
  2. Step 2: Convert to fraction form
    547,141,194.89/820,762,245.17 = 178,678,078.25/x
  3. Step 3: Cross multiply
    547,141,194.89x = 820,762,245.17 × 178,678,078.25
  4. Step 4: Simplify right side
    547,141,194.89x = 146,652,220,662,133,728
  5. Step 5: Solve for x
    x = 146,652,220,662,133,728/547,141,194.89
  6. Step 6: Final answer
    x = 268,033,593.58

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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.