Home / 211,968,007.20-317,952,010.80-189,274,528.80

Finding the Fourth Proportional to 211,968,007.20, 317,952,010.80 and 189,274,528.80

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Solution

The fourth proportional to 211,968,007.20, 317,952,010.80 and 189,274,528.80 is: 283,911,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,968,007.20 : 317,952,010.80 = 189,274,528.80 : x
  2. Step 2: Convert to fraction form
    211,968,007.20/317,952,010.80 = 189,274,528.80/x
  3. Step 3: Cross multiply
    211,968,007.20x = 317,952,010.80 × 189,274,528.80
  4. Step 4: Simplify right side
    211,968,007.20x = 60,180,217,025,182,520
  5. Step 5: Solve for x
    x = 60,180,217,025,182,520/211,968,007.20
  6. Step 6: Final answer
    x = 283,911,793.20

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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.