Home / 298,120,115.58-445,934,612.46-209,482,476.12

Finding the Fourth Proportional to 298,120,115.58, 445,934,612.46 and 209,482,476.12

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Solution

The fourth proportional to 298,120,115.58, 445,934,612.46 and 209,482,476.12 is: 313,348,485.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,120,115.58 : 445,934,612.46 = 209,482,476.12 : x
  2. Step 2: Convert to fraction form
    298,120,115.58/445,934,612.46 = 209,482,476.12/x
  3. Step 3: Cross multiply
    298,120,115.58x = 445,934,612.46 × 209,482,476.12
  4. Step 4: Simplify right side
    298,120,115.58x = 93,415,486,805,733,408
  5. Step 5: Solve for x
    x = 93,415,486,805,733,408/298,120,115.58
  6. Step 6: Final answer
    x = 313,348,485.81

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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.