Home / 489,498,179.41-734,031,805.85-259,413,357.25

Finding the Fourth Proportional to 489,498,179.41, 734,031,805.85 and 259,413,357.25

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Solution

The fourth proportional to 489,498,179.41, 734,031,805.85 and 259,413,357.25 is: 389,005,849.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,498,179.41 : 734,031,805.85 = 259,413,357.25 : x
  2. Step 2: Convert to fraction form
    489,498,179.41/734,031,805.85 = 259,413,357.25/x
  3. Step 3: Cross multiply
    489,498,179.41x = 734,031,805.85 × 259,413,357.25
  4. Step 4: Simplify right side
    489,498,179.41x = 190,417,655,078,861,472
  5. Step 5: Solve for x
    x = 190,417,655,078,861,472/489,498,179.41
  6. Step 6: Final answer
    x = 389,005,849.44

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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.