Home / 81,424,010.55-122,136,015.83-57,190,300.95

Finding the Fourth Proportional to 81,424,010.55, 122,136,015.83 and 57,190,300.95

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Solution

The fourth proportional to 81,424,010.55, 122,136,015.83 and 57,190,300.95 is: 85,785,451.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,424,010.55 : 122,136,015.83 = 57,190,300.95 : x
  2. Step 2: Convert to fraction form
    81,424,010.55/122,136,015.83 = 57,190,300.95/x
  3. Step 3: Cross multiply
    81,424,010.55x = 122,136,015.83 × 57,190,300.95
  4. Step 4: Simplify right side
    81,424,010.55x = 6,984,995,501,865,713
  5. Step 5: Solve for x
    x = 6,984,995,501,865,713/81,424,010.55
  6. Step 6: Final answer
    x = 85,785,451.43

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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.