Home / 445,544,186.40-668,316,279.60-261,399,879.90

Finding the Fourth Proportional to 445,544,186.40, 668,316,279.60 and 261,399,879.90

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Solution

The fourth proportional to 445,544,186.40, 668,316,279.60 and 261,399,879.90 is: 392,099,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,544,186.40 : 668,316,279.60 = 261,399,879.90 : x
  2. Step 2: Convert to fraction form
    445,544,186.40/668,316,279.60 = 261,399,879.90/x
  3. Step 3: Cross multiply
    445,544,186.40x = 668,316,279.60 × 261,399,879.90
  4. Step 4: Simplify right side
    445,544,186.40x = 174,697,795,222,654,816
  5. Step 5: Solve for x
    x = 174,697,795,222,654,816/445,544,186.40
  6. Step 6: Final answer
    x = 392,099,819.85

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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.