Home / 91,237,099.78-125,906,155.21-49,420,376.74

Finding the Fourth Proportional to 91,237,099.78, 125,906,155.21 and 49,420,376.74

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Solution

The fourth proportional to 91,237,099.78, 125,906,155.21 and 49,420,376.74 is: 68,199,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,237,099.78 : 125,906,155.21 = 49,420,376.74 : x
  2. Step 2: Convert to fraction form
    91,237,099.78/125,906,155.21 = 49,420,376.74/x
  3. Step 3: Cross multiply
    91,237,099.78x = 125,906,155.21 × 49,420,376.74
  4. Step 4: Simplify right side
    91,237,099.78x = 6,222,329,624,582,272
  5. Step 5: Solve for x
    x = 6,222,329,624,582,272/91,237,099.78
  6. Step 6: Final answer
    x = 68,199,555.22

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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.