Home / 759,125,772-1,138,738,621.57-198,901,318.86

Finding the Fourth Proportional to 759,125,772, 1,138,738,621.57 and 198,901,318.86

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Solution

The fourth proportional to 759,125,772, 1,138,738,621.57 and 198,901,318.86 is: 298,365,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,125,772 : 1,138,738,621.57 = 198,901,318.86 : x
  2. Step 2: Convert to fraction form
    759,125,772/1,138,738,621.57 = 198,901,318.86/x
  3. Step 3: Cross multiply
    759,125,772x = 1,138,738,621.57 × 198,901,318.86
  4. Step 4: Simplify right side
    759,125,772x = 226,496,613,666,594,240
  5. Step 5: Solve for x
    x = 226,496,613,666,594,240/759,125,772
  6. Step 6: Final answer
    x = 298,365,069.43

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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.