Home / 211,815,797.20-317,723,695.80-75,451,973.20

Finding the Fourth Proportional to 211,815,797.20, 317,723,695.80 and 75,451,973.20

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Solution

The fourth proportional to 211,815,797.20, 317,723,695.80 and 75,451,973.20 is: 113,177,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,815,797.20 : 317,723,695.80 = 75,451,973.20 : x
  2. Step 2: Convert to fraction form
    211,815,797.20/317,723,695.80 = 75,451,973.20/x
  3. Step 3: Cross multiply
    211,815,797.20x = 317,723,695.80 × 75,451,973.20
  4. Step 4: Simplify right side
    211,815,797.20x = 23,972,879,780,506,556
  5. Step 5: Solve for x
    x = 23,972,879,780,506,556/211,815,797.20
  6. Step 6: Final answer
    x = 113,177,959.80

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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.