Home / 298,985,455.80-448,478,183.70-296,969,916.60

Finding the Fourth Proportional to 298,985,455.80, 448,478,183.70 and 296,969,916.60

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Solution

The fourth proportional to 298,985,455.80, 448,478,183.70 and 296,969,916.60 is: 445,454,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,985,455.80 : 448,478,183.70 = 296,969,916.60 : x
  2. Step 2: Convert to fraction form
    298,985,455.80/448,478,183.70 = 296,969,916.60/x
  3. Step 3: Cross multiply
    298,985,455.80x = 448,478,183.70 × 296,969,916.60
  4. Step 4: Simplify right side
    298,985,455.80x = 133,184,528,810,308,480
  5. Step 5: Solve for x
    x = 133,184,528,810,308,480/298,985,455.80
  6. Step 6: Final answer
    x = 445,454,874.90

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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.