Home / 55,383,512.70-83,075,269.05-18,987,021.30

Finding the Fourth Proportional to 55,383,512.70, 83,075,269.05 and 18,987,021.30

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Solution

The fourth proportional to 55,383,512.70, 83,075,269.05 and 18,987,021.30 is: 28,480,531.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,383,512.70 : 83,075,269.05 = 18,987,021.30 : x
  2. Step 2: Convert to fraction form
    55,383,512.70/83,075,269.05 = 18,987,021.30/x
  3. Step 3: Cross multiply
    55,383,512.70x = 83,075,269.05 × 18,987,021.30
  4. Step 4: Simplify right side
    55,383,512.70x = 1,577,351,902,955,580.75
  5. Step 5: Solve for x
    x = 1,577,351,902,955,580.75/55,383,512.70
  6. Step 6: Final answer
    x = 28,480,531.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.