Home / 193,555,361.40-290,333,042.10-172,392,199.80

Finding the Fourth Proportional to 193,555,361.40, 290,333,042.10 and 172,392,199.80

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Solution

The fourth proportional to 193,555,361.40, 290,333,042.10 and 172,392,199.80 is: 258,588,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,555,361.40 : 290,333,042.10 = 172,392,199.80 : x
  2. Step 2: Convert to fraction form
    193,555,361.40/290,333,042.10 = 172,392,199.80/x
  3. Step 3: Cross multiply
    193,555,361.40x = 290,333,042.10 × 172,392,199.80
  4. Step 4: Simplify right side
    193,555,361.40x = 50,051,151,802,245,016
  5. Step 5: Solve for x
    x = 50,051,151,802,245,016/193,555,361.40
  6. Step 6: Final answer
    x = 258,588,299.70

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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.