Home / 223,758,268.58-308,789,609.73-128,404,316.35

Finding the Fourth Proportional to 223,758,268.58, 308,789,609.73 and 128,404,316.35

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Solution

The fourth proportional to 223,758,268.58, 308,789,609.73 and 128,404,316.35 is: 177,199,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,758,268.58 : 308,789,609.73 = 128,404,316.35 : x
  2. Step 2: Convert to fraction form
    223,758,268.58/308,789,609.73 = 128,404,316.35/x
  3. Step 3: Cross multiply
    223,758,268.58x = 308,789,609.73 × 128,404,316.35
  4. Step 4: Simplify right side
    223,758,268.58x = 39,649,918,732,591,984
  5. Step 5: Solve for x
    x = 39,649,918,732,591,984/223,758,268.58
  6. Step 6: Final answer
    x = 177,199,792.36

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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.