Home / 382,805,161.76-528,201,440.16-215,515,408.16

Finding the Fourth Proportional to 382,805,161.76, 528,201,440.16 and 215,515,408.16

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Solution

The fourth proportional to 382,805,161.76, 528,201,440.16 and 215,515,408.16 is: 297,372,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,805,161.76 : 528,201,440.16 = 215,515,408.16 : x
  2. Step 2: Convert to fraction form
    382,805,161.76/528,201,440.16 = 215,515,408.16/x
  3. Step 3: Cross multiply
    382,805,161.76x = 528,201,440.16 × 215,515,408.16
  4. Step 4: Simplify right side
    382,805,161.76x = 113,835,548,966,782,224
  5. Step 5: Solve for x
    x = 113,835,548,966,782,224/382,805,161.76
  6. Step 6: Final answer
    x = 297,372,032.40

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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.