Home / 123,905,621.18-170,989,844.94-68,155,283.22

Finding the Fourth Proportional to 123,905,621.18, 170,989,844.94 and 68,155,283.22

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Solution

The fourth proportional to 123,905,621.18, 170,989,844.94 and 68,155,283.22 is: 94,054,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,905,621.18 : 170,989,844.94 = 68,155,283.22 : x
  2. Step 2: Convert to fraction form
    123,905,621.18/170,989,844.94 = 68,155,283.22/x
  3. Step 3: Cross multiply
    123,905,621.18x = 170,989,844.94 × 68,155,283.22
  4. Step 4: Simplify right side
    123,905,621.18x = 11,653,861,309,629,584
  5. Step 5: Solve for x
    x = 11,653,861,309,629,584/123,905,621.18
  6. Step 6: Final answer
    x = 94,054,339.09

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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.