Home / 305,444,846.48-421,724,771.82-285,930,332.96

Finding the Fourth Proportional to 305,444,846.48, 421,724,771.82 and 285,930,332.96

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Solution

The fourth proportional to 305,444,846.48, 421,724,771.82 and 285,930,332.96 is: 394,781,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,444,846.48 : 421,724,771.82 = 285,930,332.96 : x
  2. Step 2: Convert to fraction form
    305,444,846.48/421,724,771.82 = 285,930,332.96/x
  3. Step 3: Cross multiply
    305,444,846.48x = 421,724,771.82 × 285,930,332.96
  4. Step 4: Simplify right side
    305,444,846.48x = 120,583,904,421,864,000
  5. Step 5: Solve for x
    x = 120,583,904,421,864,000/305,444,846.48
  6. Step 6: Final answer
    x = 394,781,270.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.