Home / 356,818,879.11-492,370,115.53-198,055,694.60

Finding the Fourth Proportional to 356,818,879.11, 492,370,115.53 and 198,055,694.60

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Solution

The fourth proportional to 356,818,879.11, 492,370,115.53 and 198,055,694.60 is: 273,294,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,818,879.11 : 492,370,115.53 = 198,055,694.60 : x
  2. Step 2: Convert to fraction form
    356,818,879.11/492,370,115.53 = 198,055,694.60/x
  3. Step 3: Cross multiply
    356,818,879.11x = 492,370,115.53 × 198,055,694.60
  4. Step 4: Simplify right side
    356,818,879.11x = 97,516,705,228,124,256
  5. Step 5: Solve for x
    x = 97,516,705,228,124,256/356,818,879.11
  6. Step 6: Final answer
    x = 273,294,690.78

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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.