Home / 489,498,194.70-734,031,828.63-259,413,372.54

Finding the Fourth Proportional to 489,498,194.70, 734,031,828.63 and 259,413,372.54

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Solution

The fourth proportional to 489,498,194.70, 734,031,828.63 and 259,413,372.54 is: 389,005,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,498,194.70 : 734,031,828.63 = 259,413,372.54 : x
  2. Step 2: Convert to fraction form
    489,498,194.70/734,031,828.63 = 259,413,372.54/x
  3. Step 3: Cross multiply
    489,498,194.70x = 734,031,828.63 × 259,413,372.54
  4. Step 4: Simplify right side
    489,498,194.70x = 190,417,672,216,611,616
  5. Step 5: Solve for x
    x = 190,417,672,216,611,616/489,498,194.70
  6. Step 6: Final answer
    x = 389,005,872.30

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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.