Home / 387,866,185.93-535,266,694.50-211,665,536.37

Finding the Fourth Proportional to 387,866,185.93, 535,266,694.50 and 211,665,536.37

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Solution

The fourth proportional to 387,866,185.93, 535,266,694.50 and 211,665,536.37 is: 292,104,638.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,866,185.93 : 535,266,694.50 = 211,665,536.37 : x
  2. Step 2: Convert to fraction form
    387,866,185.93/535,266,694.50 = 211,665,536.37/x
  3. Step 3: Cross multiply
    387,866,185.93x = 535,266,694.50 × 211,665,536.37
  4. Step 4: Simplify right side
    387,866,185.93x = 113,297,511,991,543,568
  5. Step 5: Solve for x
    x = 113,297,511,991,543,568/387,866,185.93
  6. Step 6: Final answer
    x = 292,104,638.41

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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.