Home / 79,180,778,208.70-109,273,399,788.84-49,116,948,262.30

Finding the Fourth Proportional to 79,180,778,208.70, 109,273,399,788.84 and 49,116,948,262.30

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Solution

The fourth proportional to 79,180,778,208.70, 109,273,399,788.84 and 49,116,948,262.30 is: 67,783,823,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,180,778,208.70 : 109,273,399,788.84 = 49,116,948,262.30 : x
  2. Step 2: Convert to fraction form
    79,180,778,208.70/109,273,399,788.84 = 49,116,948,262.30/x
  3. Step 3: Cross multiply
    79,180,778,208.70x = 109,273,399,788.84 × 49,116,948,262.30
  4. Step 4: Simplify right side
    79,180,778,208.70x = 5,367,175,923,874,078,392,320
  5. Step 5: Solve for x
    x = 5,367,175,923,874,078,392,320/79,180,778,208.70
  6. Step 6: Final answer
    x = 67,783,823,868.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.