Home / 298,974,019.40-448,524,014.70-126,361,982.60

Finding the Fourth Proportional to 298,974,019.40, 448,524,014.70 and 126,361,982.60

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Solution

The fourth proportional to 298,974,019.40, 448,524,014.70 and 126,361,982.60 is: 189,569,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,974,019.40 : 448,524,014.70 = 126,361,982.60 : x
  2. Step 2: Convert to fraction form
    298,974,019.40/448,524,014.70 = 126,361,982.60/x
  3. Step 3: Cross multiply
    298,974,019.40x = 448,524,014.70 × 126,361,982.60
  4. Step 4: Simplify right side
    298,974,019.40x = 56,676,383,741,203,544
  5. Step 5: Solve for x
    x = 56,676,383,741,203,544/298,974,019.40
  6. Step 6: Final answer
    x = 189,569,594.89

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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.