Home / 380,968,872,285.36-525,702,872,302.20-220,587,614,439.60

Finding the Fourth Proportional to 380,968,872,285.36, 525,702,872,302.20 and 220,587,614,439.60

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Solution

The fourth proportional to 380,968,872,285.36, 525,702,872,302.20 and 220,587,614,439.60 is: 304,391,122,060.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,968,872,285.36 : 525,702,872,302.20 = 220,587,614,439.60 : x
  2. Step 2: Convert to fraction form
    380,968,872,285.36/525,702,872,302.20 = 220,587,614,439.60/x
  3. Step 3: Cross multiply
    380,968,872,285.36x = 525,702,872,302.20 × 220,587,614,439.60
  4. Step 4: Simplify right side
    380,968,872,285.36x = 115,963,542,505,187,973,267,456
  5. Step 5: Solve for x
    x = 115,963,542,505,187,973,267,456/380,968,872,285.36
  6. Step 6: Final answer
    x = 304,391,122,060.83

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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.