Home / 68,722,014,468.81-103,097,858,917.77-20,918,761,961.07

Finding the Fourth Proportional to 68,722,014,468.81, 103,097,858,917.77 and 20,918,761,961.07

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Solution

The fourth proportional to 68,722,014,468.81, 103,097,858,917.77 and 20,918,761,961.07 is: 31,382,659,342.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,722,014,468.81 : 103,097,858,917.77 = 20,918,761,961.07 : x
  2. Step 2: Convert to fraction form
    68,722,014,468.81/103,097,858,917.77 = 20,918,761,961.07/x
  3. Step 3: Cross multiply
    68,722,014,468.81x = 103,097,858,917.77 × 20,918,761,961.07
  4. Step 4: Simplify right side
    68,722,014,468.81x = 2,156,679,569,396,808,548,352
  5. Step 5: Solve for x
    x = 2,156,679,569,396,808,548,352/68,722,014,468.81
  6. Step 6: Final answer
    x = 31,382,659,342.38

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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.