Home / 66,448,379.20-99,653,906.40-21,024,097.60

Finding the Fourth Proportional to 66,448,379.20, 99,653,906.40 and 21,024,097.60

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Solution

The fourth proportional to 66,448,379.20, 99,653,906.40 and 21,024,097.60 is: 31,530,241.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448,379.20 : 99,653,906.40 = 21,024,097.60 : x
  2. Step 2: Convert to fraction form
    66,448,379.20/99,653,906.40 = 21,024,097.60/x
  3. Step 3: Cross multiply
    66,448,379.20x = 99,653,906.40 × 21,024,097.60
  4. Step 4: Simplify right side
    66,448,379.20x = 2,095,133,454,374,865
  5. Step 5: Solve for x
    x = 2,095,133,454,374,865/66,448,379.20
  6. Step 6: Final answer
    x = 31,530,241.66

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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.