Home / 548,144,999.20-822,217,498.80-419,004,836.20

Finding the Fourth Proportional to 548,144,999.20, 822,217,498.80 and 419,004,836.20

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Solution

The fourth proportional to 548,144,999.20, 822,217,498.80 and 419,004,836.20 is: 628,507,254.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,144,999.20 : 822,217,498.80 = 419,004,836.20 : x
  2. Step 2: Convert to fraction form
    548,144,999.20/822,217,498.80 = 419,004,836.20/x
  3. Step 3: Cross multiply
    548,144,999.20x = 822,217,498.80 × 419,004,836.20
  4. Step 4: Simplify right side
    548,144,999.20x = 344,513,108,405,467,648
  5. Step 5: Solve for x
    x = 344,513,108,405,467,648/548,144,999.20
  6. Step 6: Final answer
    x = 628,507,254.30

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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.