Home / 211,297,246.20-316,945,869.30-129,667,908.60

Finding the Fourth Proportional to 211,297,246.20, 316,945,869.30 and 129,667,908.60

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Solution

The fourth proportional to 211,297,246.20, 316,945,869.30 and 129,667,908.60 is: 194,501,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,297,246.20 : 316,945,869.30 = 129,667,908.60 : x
  2. Step 2: Convert to fraction form
    211,297,246.20/316,945,869.30 = 129,667,908.60/x
  3. Step 3: Cross multiply
    211,297,246.20x = 316,945,869.30 × 129,667,908.60
  4. Step 4: Simplify right side
    211,297,246.20x = 41,097,708,011,539,944
  5. Step 5: Solve for x
    x = 41,097,708,011,539,944/211,297,246.20
  6. Step 6: Final answer
    x = 194,501,862.90

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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.