Home / 491,219,918.64-677,874,221.38-300,466,901.35

Finding the Fourth Proportional to 491,219,918.64, 677,874,221.38 and 300,466,901.35

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Solution

The fourth proportional to 491,219,918.64, 677,874,221.38 and 300,466,901.35 is: 414,638,655.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,219,918.64 : 677,874,221.38 = 300,466,901.35 : x
  2. Step 2: Convert to fraction form
    491,219,918.64/677,874,221.38 = 300,466,901.35/x
  3. Step 3: Cross multiply
    491,219,918.64x = 677,874,221.38 × 300,466,901.35
  4. Step 4: Simplify right side
    491,219,918.64x = 203,678,766,804,315,456
  5. Step 5: Solve for x
    x = 203,678,766,804,315,456/491,219,918.64
  6. Step 6: Final answer
    x = 414,638,655.88

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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.