Home / 211,978,020.60-317,967,030.90-196,672,519.80

Finding the Fourth Proportional to 211,978,020.60, 317,967,030.90 and 196,672,519.80

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Solution

The fourth proportional to 211,978,020.60, 317,967,030.90 and 196,672,519.80 is: 295,008,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,978,020.60 : 317,967,030.90 = 196,672,519.80 : x
  2. Step 2: Convert to fraction form
    211,978,020.60/317,967,030.90 = 196,672,519.80/x
  3. Step 3: Cross multiply
    211,978,020.60x = 317,967,030.90 × 196,672,519.80
  4. Step 4: Simplify right side
    211,978,020.60x = 62,535,377,180,427,464
  5. Step 5: Solve for x
    x = 62,535,377,180,427,464/211,978,020.60
  6. Step 6: Final answer
    x = 295,008,779.70

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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.