Home / 489,413,907.74-675,409,010.72-266,384,807.54

Finding the Fourth Proportional to 489,413,907.74, 675,409,010.72 and 266,384,807.54

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Solution

The fourth proportional to 489,413,907.74, 675,409,010.72 and 266,384,807.54 is: 367,620,732.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,413,907.74 : 675,409,010.72 = 266,384,807.54 : x
  2. Step 2: Convert to fraction form
    489,413,907.74/675,409,010.72 = 266,384,807.54/x
  3. Step 3: Cross multiply
    489,413,907.74x = 675,409,010.72 × 266,384,807.54
  4. Step 4: Simplify right side
    489,413,907.74x = 179,918,699,326,720,032
  5. Step 5: Solve for x
    x = 179,918,699,326,720,032/489,413,907.74
  6. Step 6: Final answer
    x = 367,620,732.64

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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.