Home / 112,126,997.40-168,190,496.10-68,855,890.20

Finding the Fourth Proportional to 112,126,997.40, 168,190,496.10 and 68,855,890.20

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Solution

The fourth proportional to 112,126,997.40, 168,190,496.10 and 68,855,890.20 is: 103,283,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,126,997.40 : 168,190,496.10 = 68,855,890.20 : x
  2. Step 2: Convert to fraction form
    112,126,997.40/168,190,496.10 = 68,855,890.20/x
  3. Step 3: Cross multiply
    112,126,997.40x = 168,190,496.10 × 68,855,890.20
  4. Step 4: Simplify right side
    112,126,997.40x = 11,580,906,332,145,128
  5. Step 5: Solve for x
    x = 11,580,906,332,145,128/112,126,997.40
  6. Step 6: Final answer
    x = 103,283,835.30

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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.