Home / 284,288,163.60-426,432,245.40-211,728,752.40

Finding the Fourth Proportional to 284,288,163.60, 426,432,245.40 and 211,728,752.40

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Solution

The fourth proportional to 284,288,163.60, 426,432,245.40 and 211,728,752.40 is: 317,593,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,288,163.60 : 426,432,245.40 = 211,728,752.40 : x
  2. Step 2: Convert to fraction form
    284,288,163.60/426,432,245.40 = 211,728,752.40/x
  3. Step 3: Cross multiply
    284,288,163.60x = 426,432,245.40 × 211,728,752.40
  4. Step 4: Simplify right side
    284,288,163.60x = 90,287,967,301,672,640
  5. Step 5: Solve for x
    x = 90,287,967,301,672,640/284,288,163.60
  6. Step 6: Final answer
    x = 317,593,128.60

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1.5x scale

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.