Home / 672,624,725.84-1,008,850,308.60-212,609,396.24

Finding the Fourth Proportional to 672,624,725.84, 1,008,850,308.60 and 212,609,396.24

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Solution

The fourth proportional to 672,624,725.84, 1,008,850,308.60 and 212,609,396.24 is: 318,886,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,624,725.84 : 1,008,850,308.60 = 212,609,396.24 : x
  2. Step 2: Convert to fraction form
    672,624,725.84/1,008,850,308.60 = 212,609,396.24/x
  3. Step 3: Cross multiply
    672,624,725.84x = 1,008,850,308.60 × 212,609,396.24
  4. Step 4: Simplify right side
    672,624,725.84x = 214,491,055,007,983,680
  5. Step 5: Solve for x
    x = 214,491,055,007,983,680/672,624,725.84
  6. Step 6: Final answer
    x = 318,886,664.09

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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.