Home / 755,515,769.70-1,042,601,164.05-421,002,391.23

Finding the Fourth Proportional to 755,515,769.70, 1,042,601,164.05 and 421,002,391.23

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Solution

The fourth proportional to 755,515,769.70, 1,042,601,164.05 and 421,002,391.23 is: 580,977,394.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,515,769.70 : 1,042,601,164.05 = 421,002,391.23 : x
  2. Step 2: Convert to fraction form
    755,515,769.70/1,042,601,164.05 = 421,002,391.23/x
  3. Step 3: Cross multiply
    755,515,769.70x = 1,042,601,164.05 × 421,002,391.23
  4. Step 4: Simplify right side
    755,515,769.70x = 438,937,583,164,231,488
  5. Step 5: Solve for x
    x = 438,937,583,164,231,488/755,515,769.70
  6. Step 6: Final answer
    x = 580,977,394.21

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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.