Home / 211,463,760.90-317,188,661.67-86,962,080.90

Finding the Fourth Proportional to 211,463,760.90, 317,188,661.67 and 86,962,080.90

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Solution

The fourth proportional to 211,463,760.90, 317,188,661.67 and 86,962,080.90 is: 130,440,251.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,463,760.90 : 317,188,661.67 = 86,962,080.90 : x
  2. Step 2: Convert to fraction form
    211,463,760.90/317,188,661.67 = 86,962,080.90/x
  3. Step 3: Cross multiply
    211,463,760.90x = 317,188,661.67 × 86,962,080.90
  4. Step 4: Simplify right side
    211,463,760.90x = 27,583,386,056,709,272
  5. Step 5: Solve for x
    x = 27,583,386,056,709,272/211,463,760.90
  6. Step 6: Final answer
    x = 130,440,251.04

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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.