Home / 386,571,938,951.62-533,485,809,997.35-215,293,842,976.45

Finding the Fourth Proportional to 386,571,938,951.62, 533,485,809,997.35 and 215,293,842,976.45

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Solution

The fourth proportional to 386,571,938,951.62, 533,485,809,997.35 and 215,293,842,976.45 is: 297,114,711,738.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,571,938,951.62 : 533,485,809,997.35 = 215,293,842,976.45 : x
  2. Step 2: Convert to fraction form
    386,571,938,951.62/533,485,809,997.35 = 215,293,842,976.45/x
  3. Step 3: Cross multiply
    386,571,938,951.62x = 533,485,809,997.35 × 215,293,842,976.45
  4. Step 4: Simplify right side
    386,571,938,951.62x = 114,856,210,207,733,719,236,608
  5. Step 5: Solve for x
    x = 114,856,210,207,733,719,236,608/386,571,938,951.62
  6. Step 6: Final answer
    x = 297,114,711,738.32

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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.