Home / 235,829,939.38-325,440,957.13-128,540,186.26

Finding the Fourth Proportional to 235,829,939.38, 325,440,957.13 and 128,540,186.26

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Solution

The fourth proportional to 235,829,939.38, 325,440,957.13 and 128,540,186.26 is: 177,383,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,829,939.38 : 325,440,957.13 = 128,540,186.26 : x
  2. Step 2: Convert to fraction form
    235,829,939.38/325,440,957.13 = 128,540,186.26/x
  3. Step 3: Cross multiply
    235,829,939.38x = 325,440,957.13 × 128,540,186.26
  4. Step 4: Simplify right side
    235,829,939.38x = 41,832,241,246,122,880
  5. Step 5: Solve for x
    x = 41,832,241,246,122,880/235,829,939.38
  6. Step 6: Final answer
    x = 177,383,081.03

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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.