Home / 511,305,981.57-705,602,556.67-285,244,966.03

Finding the Fourth Proportional to 511,305,981.57, 705,602,556.67 and 285,244,966.03

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Solution

The fourth proportional to 511,305,981.57, 705,602,556.67 and 285,244,966.03 is: 393,638,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,305,981.57 : 705,602,556.67 = 285,244,966.03 : x
  2. Step 2: Convert to fraction form
    511,305,981.57/705,602,556.67 = 285,244,966.03/x
  3. Step 3: Cross multiply
    511,305,981.57x = 705,602,556.67 × 285,244,966.03
  4. Step 4: Simplify right side
    511,305,981.57x = 201,269,577,308,015,264
  5. Step 5: Solve for x
    x = 201,269,577,308,015,264/511,305,981.57
  6. Step 6: Final answer
    x = 393,638,221.66

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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.