Home / 99,168,431.40-148,752,647.10-68,557,429.80

Finding the Fourth Proportional to 99,168,431.40, 148,752,647.10 and 68,557,429.80

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Solution

The fourth proportional to 99,168,431.40, 148,752,647.10 and 68,557,429.80 is: 102,836,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,168,431.40 : 148,752,647.10 = 68,557,429.80 : x
  2. Step 2: Convert to fraction form
    99,168,431.40/148,752,647.10 = 68,557,429.80/x
  3. Step 3: Cross multiply
    99,168,431.40x = 148,752,647.10 × 68,557,429.80
  4. Step 4: Simplify right side
    99,168,431.40x = 10,198,099,161,122,422
  5. Step 5: Solve for x
    x = 10,198,099,161,122,422/99,168,431.40
  6. Step 6: Final answer
    x = 102,836,144.70

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1.5x scale

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.