Home / 620,541,429.64-856,352,949.12-342,092,917.60

Finding the Fourth Proportional to 620,541,429.64, 856,352,949.12 and 342,092,917.60

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Solution

The fourth proportional to 620,541,429.64, 856,352,949.12 and 342,092,917.60 is: 472,091,410.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,541,429.64 : 856,352,949.12 = 342,092,917.60 : x
  2. Step 2: Convert to fraction form
    620,541,429.64/856,352,949.12 = 342,092,917.60/x
  3. Step 3: Cross multiply
    620,541,429.64x = 856,352,949.12 × 342,092,917.60
  4. Step 4: Simplify right side
    620,541,429.64x = 292,952,278,859,825,152
  5. Step 5: Solve for x
    x = 292,952,278,859,825,152/620,541,429.64
  6. Step 6: Final answer
    x = 472,091,410.61

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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.