Home / 445,608,845.40-667,137,809.70-394,590,509.40

Finding the Fourth Proportional to 445,608,845.40, 667,137,809.70 and 394,590,509.40

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Solution

The fourth proportional to 445,608,845.40, 667,137,809.70 and 394,590,509.40 is: 590,756,334.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,608,845.40 : 667,137,809.70 = 394,590,509.40 : x
  2. Step 2: Convert to fraction form
    445,608,845.40/667,137,809.70 = 394,590,509.40/x
  3. Step 3: Cross multiply
    445,608,845.40x = 667,137,809.70 × 394,590,509.40
  4. Step 4: Simplify right side
    445,608,845.40x = 263,246,248,169,523,264
  5. Step 5: Solve for x
    x = 263,246,248,169,523,264/445,608,845.40
  6. Step 6: Final answer
    x = 590,756,334.59

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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.