Home / 124,647,208.12-172,022,052.85-68,891,428.26

Finding the Fourth Proportional to 124,647,208.12, 172,022,052.85 and 68,891,428.26

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Solution

The fourth proportional to 124,647,208.12, 172,022,052.85 and 68,891,428.26 is: 95,075,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,647,208.12 : 172,022,052.85 = 68,891,428.26 : x
  2. Step 2: Convert to fraction form
    124,647,208.12/172,022,052.85 = 68,891,428.26/x
  3. Step 3: Cross multiply
    124,647,208.12x = 172,022,052.85 × 68,891,428.26
  4. Step 4: Simplify right side
    124,647,208.12x = 11,850,844,912,881,476
  5. Step 5: Solve for x
    x = 11,850,844,912,881,476/124,647,208.12
  6. Step 6: Final answer
    x = 95,075,093.07

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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.