Home / 211,463,757.40-317,188,656.42-86,962,077.40

Finding the Fourth Proportional to 211,463,757.40, 317,188,656.42 and 86,962,077.40

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Solution

The fourth proportional to 211,463,757.40, 317,188,656.42 and 86,962,077.40 is: 130,440,245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,463,757.40 : 317,188,656.42 = 86,962,077.40 : x
  2. Step 2: Convert to fraction form
    211,463,757.40/317,188,656.42 = 86,962,077.40/x
  3. Step 3: Cross multiply
    211,463,757.40x = 317,188,656.42 × 86,962,077.40
  4. Step 4: Simplify right side
    211,463,757.40x = 27,583,384,489,998,052
  5. Step 5: Solve for x
    x = 27,583,384,489,998,052/211,463,757.40
  6. Step 6: Final answer
    x = 130,440,245.79

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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.