Home / 620,541,431.64-856,352,951.88-342,092,919.60

Finding the Fourth Proportional to 620,541,431.64, 856,352,951.88 and 342,092,919.60

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Solution

The fourth proportional to 620,541,431.64, 856,352,951.88 and 342,092,919.60 is: 472,091,413.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,541,431.64 : 856,352,951.88 = 342,092,919.60 : x
  2. Step 2: Convert to fraction form
    620,541,431.64/856,352,951.88 = 342,092,919.60/x
  3. Step 3: Cross multiply
    620,541,431.64x = 856,352,951.88 × 342,092,919.60
  4. Step 4: Simplify right side
    620,541,431.64x = 292,952,281,516,707,520
  5. Step 5: Solve for x
    x = 292,952,281,516,707,520/620,541,431.64
  6. Step 6: Final answer
    x = 472,091,413.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.