Home / 138,163,812.10-207,310,435.24-68,095,843.60

Finding the Fourth Proportional to 138,163,812.10, 207,310,435.24 and 68,095,843.60

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Solution

The fourth proportional to 138,163,812.10, 207,310,435.24 and 68,095,843.60 is: 102,175,662.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,163,812.10 : 207,310,435.24 = 68,095,843.60 : x
  2. Step 2: Convert to fraction form
    138,163,812.10/207,310,435.24 = 68,095,843.60/x
  3. Step 3: Cross multiply
    138,163,812.10x = 207,310,435.24 × 68,095,843.60
  4. Step 4: Simplify right side
    138,163,812.10x = 14,116,978,974,750,968
  5. Step 5: Solve for x
    x = 14,116,978,974,750,968/138,163,812.10
  6. Step 6: Final answer
    x = 102,175,662.07

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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.