Home / 489,498,197.48-734,031,832.80-259,413,375.32

Finding the Fourth Proportional to 489,498,197.48, 734,031,832.80 and 259,413,375.32

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Solution

The fourth proportional to 489,498,197.48, 734,031,832.80 and 259,413,375.32 is: 389,005,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,498,197.48 : 734,031,832.80 = 259,413,375.32 : x
  2. Step 2: Convert to fraction form
    489,498,197.48/734,031,832.80 = 259,413,375.32/x
  3. Step 3: Cross multiply
    489,498,197.48x = 734,031,832.80 × 259,413,375.32
  4. Step 4: Simplify right side
    489,498,197.48x = 190,417,675,338,973,856
  5. Step 5: Solve for x
    x = 190,417,675,338,973,856/489,498,197.48
  6. Step 6: Final answer
    x = 389,005,876.47

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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.