Home / 528,640,707.26-729,481,469.25-305,636,762.33

Finding the Fourth Proportional to 528,640,707.26, 729,481,469.25 and 305,636,762.33

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Solution

The fourth proportional to 528,640,707.26, 729,481,469.25 and 305,636,762.33 is: 421,754,040.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,640,707.26 : 729,481,469.25 = 305,636,762.33 : x
  2. Step 2: Convert to fraction form
    528,640,707.26/729,481,469.25 = 305,636,762.33/x
  3. Step 3: Cross multiply
    528,640,707.26x = 729,481,469.25 × 305,636,762.33
  4. Step 4: Simplify right side
    528,640,707.26x = 222,956,354,437,654,048
  5. Step 5: Solve for x
    x = 222,956,354,437,654,048/528,640,707.26
  6. Step 6: Final answer
    x = 421,754,040.84

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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.