Home / 491,219,922.64-677,874,226.90-300,466,905.36

Finding the Fourth Proportional to 491,219,922.64, 677,874,226.90 and 300,466,905.36

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Solution

The fourth proportional to 491,219,922.64, 677,874,226.90 and 300,466,905.36 is: 414,638,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,219,922.64 : 677,874,226.90 = 300,466,905.36 : x
  2. Step 2: Convert to fraction form
    491,219,922.64/677,874,226.90 = 300,466,905.36/x
  3. Step 3: Cross multiply
    491,219,922.64x = 677,874,226.90 × 300,466,905.36
  4. Step 4: Simplify right side
    491,219,922.64x = 203,678,771,179,945,472
  5. Step 5: Solve for x
    x = 203,678,771,179,945,472/491,219,922.64
  6. Step 6: Final answer
    x = 414,638,661.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.