Home / 489,904,307.60-734,856,461.40-198,910,835.60

Finding the Fourth Proportional to 489,904,307.60, 734,856,461.40 and 198,910,835.60

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Solution

The fourth proportional to 489,904,307.60, 734,856,461.40 and 198,910,835.60 is: 298,366,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,904,307.60 : 734,856,461.40 = 198,910,835.60 : x
  2. Step 2: Convert to fraction form
    489,904,307.60/734,856,461.40 = 198,910,835.60/x
  3. Step 3: Cross multiply
    489,904,307.60x = 734,856,461.40 × 198,910,835.60
  4. Step 4: Simplify right side
    489,904,307.60x = 146,170,912,783,133,152
  5. Step 5: Solve for x
    x = 146,170,912,783,133,152/489,904,307.60
  6. Step 6: Final answer
    x = 298,366,253.40

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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.