Home / 99,647,986.60-149,471,979.90-61,184,780.20

Finding the Fourth Proportional to 99,647,986.60, 149,471,979.90 and 61,184,780.20

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Solution

The fourth proportional to 99,647,986.60, 149,471,979.90 and 61,184,780.20 is: 91,777,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,647,986.60 : 149,471,979.90 = 61,184,780.20 : x
  2. Step 2: Convert to fraction form
    99,647,986.60/149,471,979.90 = 61,184,780.20/x
  3. Step 3: Cross multiply
    99,647,986.60x = 149,471,979.90 × 61,184,780.20
  4. Step 4: Simplify right side
    99,647,986.60x = 9,145,410,236,240,318
  5. Step 5: Solve for x
    x = 9,145,410,236,240,318/99,647,986.60
  6. Step 6: Final answer
    x = 91,777,170.30

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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.