Home / 99,863,245.40-149,682,893.70-42,345,728.60

Finding the Fourth Proportional to 99,863,245.40, 149,682,893.70 and 42,345,728.60

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Solution

The fourth proportional to 99,863,245.40, 149,682,893.70 and 42,345,728.60 is: 63,471,111.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,863,245.40 : 149,682,893.70 = 42,345,728.60 : x
  2. Step 2: Convert to fraction form
    99,863,245.40/149,682,893.70 = 42,345,728.60/x
  3. Step 3: Cross multiply
    99,863,245.40x = 149,682,893.70 × 42,345,728.60
  4. Step 4: Simplify right side
    99,863,245.40x = 6,338,431,192,682,850
  5. Step 5: Solve for x
    x = 6,338,431,192,682,850/99,863,245.40
  6. Step 6: Final answer
    x = 63,471,111.59

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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.