Home / 352,511,760.40-528,767,640.60-147,971,856.40

Finding the Fourth Proportional to 352,511,760.40, 528,767,640.60 and 147,971,856.40

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Solution

The fourth proportional to 352,511,760.40, 528,767,640.60 and 147,971,856.40 is: 221,957,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,511,760.40 : 528,767,640.60 = 147,971,856.40 : x
  2. Step 2: Convert to fraction form
    352,511,760.40/528,767,640.60 = 147,971,856.40/x
  3. Step 3: Cross multiply
    352,511,760.40x = 528,767,640.60 × 147,971,856.40
  4. Step 4: Simplify right side
    352,511,760.40x = 78,242,729,383,830,016
  5. Step 5: Solve for x
    x = 78,242,729,383,830,016/352,511,760.40
  6. Step 6: Final answer
    x = 221,957,784.60

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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.