Home / 211,978,029.60-317,967,044.40-196,672,528.80

Finding the Fourth Proportional to 211,978,029.60, 317,967,044.40 and 196,672,528.80

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Solution

The fourth proportional to 211,978,029.60, 317,967,044.40 and 196,672,528.80 is: 295,008,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,978,029.60 : 317,967,044.40 = 196,672,528.80 : x
  2. Step 2: Convert to fraction form
    211,978,029.60/317,967,044.40 = 196,672,528.80/x
  3. Step 3: Cross multiply
    211,978,029.60x = 317,967,044.40 × 196,672,528.80
  4. Step 4: Simplify right side
    211,978,029.60x = 62,535,382,697,209,880
  5. Step 5: Solve for x
    x = 62,535,382,697,209,880/211,978,029.60
  6. Step 6: Final answer
    x = 295,008,793.20

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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.