Home / 223,758,270.09-308,789,611.80-128,404,317.85

Finding the Fourth Proportional to 223,758,270.09, 308,789,611.80 and 128,404,317.85

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Solution

The fourth proportional to 223,758,270.09, 308,789,611.80 and 128,404,317.85 is: 177,199,794.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,758,270.09 : 308,789,611.80 = 128,404,317.85 : x
  2. Step 2: Convert to fraction form
    223,758,270.09/308,789,611.80 = 128,404,317.85/x
  3. Step 3: Cross multiply
    223,758,270.09x = 308,789,611.80 × 128,404,317.85
  4. Step 4: Simplify right side
    223,758,270.09x = 39,649,919,461,091,816
  5. Step 5: Solve for x
    x = 39,649,919,461,091,816/223,758,270.09
  6. Step 6: Final answer
    x = 177,199,794.43

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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.