Home / 81,424,004.80-122,136,007.20-57,190,295.20

Finding the Fourth Proportional to 81,424,004.80, 122,136,007.20 and 57,190,295.20

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Solution

The fourth proportional to 81,424,004.80, 122,136,007.20 and 57,190,295.20 is: 85,785,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,424,004.80 : 122,136,007.20 = 57,190,295.20 : x
  2. Step 2: Convert to fraction form
    81,424,004.80/122,136,007.20 = 57,190,295.20/x
  3. Step 3: Cross multiply
    81,424,004.80x = 122,136,007.20 × 57,190,295.20
  4. Step 4: Simplify right side
    81,424,004.80x = 6,984,994,306,317,326
  5. Step 5: Solve for x
    x = 6,984,994,306,317,326/81,424,004.80
  6. Step 6: Final answer
    x = 85,785,442.80

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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.