Home / 211,463,757.90-317,188,657.17-86,962,077.90

Finding the Fourth Proportional to 211,463,757.90, 317,188,657.17 and 86,962,077.90

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Solution

The fourth proportional to 211,463,757.90, 317,188,657.17 and 86,962,077.90 is: 130,440,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,463,757.90 : 317,188,657.17 = 86,962,077.90 : x
  2. Step 2: Convert to fraction form
    211,463,757.90/317,188,657.17 = 86,962,077.90/x
  3. Step 3: Cross multiply
    211,463,757.90x = 317,188,657.17 × 86,962,077.90
  4. Step 4: Simplify right side
    211,463,757.90x = 27,583,384,713,813,936
  5. Step 5: Solve for x
    x = 27,583,384,713,813,936/211,463,757.90
  6. Step 6: Final answer
    x = 130,440,246.54

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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.