Home / 419,665,590.48-579,139,072.71-231,489,639.60

Finding the Fourth Proportional to 419,665,590.48, 579,139,072.71 and 231,489,639.60

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Solution

The fourth proportional to 419,665,590.48, 579,139,072.71 and 231,489,639.60 is: 319,456,010.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,665,590.48 : 579,139,072.71 = 231,489,639.60 : x
  2. Step 2: Convert to fraction form
    419,665,590.48/579,139,072.71 = 231,489,639.60/x
  3. Step 3: Cross multiply
    419,665,590.48x = 579,139,072.71 × 231,489,639.60
  4. Step 4: Simplify right side
    419,665,590.48x = 134,064,695,219,916,096
  5. Step 5: Solve for x
    x = 134,064,695,219,916,096/419,665,590.48
  6. Step 6: Final answer
    x = 319,456,010.36

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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.