Home / 386,571,938,951.61-533,485,809,997.34-215,293,842,976.46

Finding the Fourth Proportional to 386,571,938,951.61, 533,485,809,997.34 and 215,293,842,976.46

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Solution

The fourth proportional to 386,571,938,951.61, 533,485,809,997.34 and 215,293,842,976.46 is: 297,114,711,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,571,938,951.61 : 533,485,809,997.34 = 215,293,842,976.46 : x
  2. Step 2: Convert to fraction form
    386,571,938,951.61/533,485,809,997.34 = 215,293,842,976.46/x
  3. Step 3: Cross multiply
    386,571,938,951.61x = 533,485,809,997.34 × 215,293,842,976.46
  4. Step 4: Simplify right side
    386,571,938,951.61x = 114,856,210,207,736,890,130,432
  5. Step 5: Solve for x
    x = 114,856,210,207,736,890,130,432/386,571,938,951.61
  6. Step 6: Final answer
    x = 297,114,711,738.34

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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.