Home / 84,499,848,029.40-126,749,772,044.10-78,114,619,843.80

Finding the Fourth Proportional to 84,499,848,029.40, 126,749,772,044.10 and 78,114,619,843.80

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Solution

The fourth proportional to 84,499,848,029.40, 126,749,772,044.10 and 78,114,619,843.80 is: 117,171,929,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,499,848,029.40 : 126,749,772,044.10 = 78,114,619,843.80 : x
  2. Step 2: Convert to fraction form
    84,499,848,029.40/126,749,772,044.10 = 78,114,619,843.80/x
  3. Step 3: Cross multiply
    84,499,848,029.40x = 126,749,772,044.10 × 78,114,619,843.80
  4. Step 4: Simplify right side
    84,499,848,029.40x = 9,901,010,258,513,180,491,776
  5. Step 5: Solve for x
    x = 9,901,010,258,513,180,491,776/84,499,848,029.40
  6. Step 6: Final answer
    x = 117,171,929,765.70

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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.