Home / 103,236,021.54-142,469,469.18-56,190,822.12

Finding the Fourth Proportional to 103,236,021.54, 142,469,469.18 and 56,190,822.12

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Solution

The fourth proportional to 103,236,021.54, 142,469,469.18 and 56,190,822.12 is: 77,545,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,236,021.54 : 142,469,469.18 = 56,190,822.12 : x
  2. Step 2: Convert to fraction form
    103,236,021.54/142,469,469.18 = 56,190,822.12/x
  3. Step 3: Cross multiply
    103,236,021.54x = 142,469,469.18 × 56,190,822.12
  4. Step 4: Simplify right side
    103,236,021.54x = 8,005,476,600,224,202
  5. Step 5: Solve for x
    x = 8,005,476,600,224,202/103,236,021.54
  6. Step 6: Final answer
    x = 77,545,380.78

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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.