Home / 511,305,980.57-705,602,555.29-285,244,965.03

Finding the Fourth Proportional to 511,305,980.57, 705,602,555.29 and 285,244,965.03

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Solution

The fourth proportional to 511,305,980.57, 705,602,555.29 and 285,244,965.03 is: 393,638,220.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,305,980.57 : 705,602,555.29 = 285,244,965.03 : x
  2. Step 2: Convert to fraction form
    511,305,980.57/705,602,555.29 = 285,244,965.03/x
  3. Step 3: Cross multiply
    511,305,980.57x = 705,602,555.29 × 285,244,965.03
  4. Step 4: Simplify right side
    511,305,980.57x = 201,269,576,211,777,248
  5. Step 5: Solve for x
    x = 201,269,576,211,777,248/511,305,980.57
  6. Step 6: Final answer
    x = 393,638,220.28

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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.