Home / 489,904,312.10-734,856,468.15-198,910,840.10

Finding the Fourth Proportional to 489,904,312.10, 734,856,468.15 and 198,910,840.10

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Solution

The fourth proportional to 489,904,312.10, 734,856,468.15 and 198,910,840.10 is: 298,366,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,904,312.10 : 734,856,468.15 = 198,910,840.10 : x
  2. Step 2: Convert to fraction form
    489,904,312.10/734,856,468.15 = 198,910,840.10/x
  3. Step 3: Cross multiply
    489,904,312.10x = 734,856,468.15 × 198,910,840.10
  4. Step 4: Simplify right side
    489,904,312.10x = 146,170,917,432,635,392
  5. Step 5: Solve for x
    x = 146,170,917,432,635,392/489,904,312.10
  6. Step 6: Final answer
    x = 298,366,260.15

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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.