Home / 378,888,822.72-522,866,568.96-205,048,566.72

Finding the Fourth Proportional to 378,888,822.72, 522,866,568.96 and 205,048,566.72

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Solution

The fourth proportional to 378,888,822.72, 522,866,568.96 and 205,048,566.72 is: 282,967,018.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,888,822.72 : 522,866,568.96 = 205,048,566.72 : x
  2. Step 2: Convert to fraction form
    378,888,822.72/522,866,568.96 = 205,048,566.72/x
  3. Step 3: Cross multiply
    378,888,822.72x = 522,866,568.96 × 205,048,566.72
  4. Step 4: Simplify right side
    378,888,822.72x = 107,213,040,551,052,032
  5. Step 5: Solve for x
    x = 107,213,040,551,052,032/378,888,822.72
  6. Step 6: Final answer
    x = 282,967,018.61

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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.