Home / 81,424,010.60-122,136,015.90-27,571,322.60

Finding the Fourth Proportional to 81,424,010.60, 122,136,015.90 and 27,571,322.60

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Solution

The fourth proportional to 81,424,010.60, 122,136,015.90 and 27,571,322.60 is: 41,356,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,424,010.60 : 122,136,015.90 = 27,571,322.60 : x
  2. Step 2: Convert to fraction form
    81,424,010.60/122,136,015.90 = 27,571,322.60/x
  3. Step 3: Cross multiply
    81,424,010.60x = 122,136,015.90 × 27,571,322.60
  4. Step 4: Simplify right side
    81,424,010.60x = 3,367,451,495,457,629.50
  5. Step 5: Solve for x
    x = 3,367,451,495,457,629.50/81,424,010.60
  6. Step 6: Final answer
    x = 41,356,983.90

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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.