Home / 472,392,628.20-708,588,942.30-445,608,001.80

Finding the Fourth Proportional to 472,392,628.20, 708,588,942.30 and 445,608,001.80

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Solution

The fourth proportional to 472,392,628.20, 708,588,942.30 and 445,608,001.80 is: 668,412,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,628.20 : 708,588,942.30 = 445,608,001.80 : x
  2. Step 2: Convert to fraction form
    472,392,628.20/708,588,942.30 = 445,608,001.80/x
  3. Step 3: Cross multiply
    472,392,628.20x = 708,588,942.30 × 445,608,001.80
  4. Step 4: Simplify right side
    472,392,628.20x = 315,752,902,675,878,464
  5. Step 5: Solve for x
    x = 315,752,902,675,878,464/472,392,628.20
  6. Step 6: Final answer
    x = 668,412,002.70

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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.