Home / 386,571,938,969.64-533,485,810,022.18-215,293,842,994.48

Finding the Fourth Proportional to 386,571,938,969.64, 533,485,810,022.18 and 215,293,842,994.48

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Solution

The fourth proportional to 386,571,938,969.64, 533,485,810,022.18 and 215,293,842,994.48 is: 297,114,711,763.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,571,938,969.64 : 533,485,810,022.18 = 215,293,842,994.48 : x
  2. Step 2: Convert to fraction form
    386,571,938,969.64/533,485,810,022.18 = 215,293,842,994.48/x
  3. Step 3: Cross multiply
    386,571,938,969.64x = 533,485,810,022.18 × 215,293,842,994.48
  4. Step 4: Simplify right side
    386,571,938,969.64x = 114,856,210,222,698,207,379,456
  5. Step 5: Solve for x
    x = 114,856,210,222,698,207,379,456/386,571,938,969.64
  6. Step 6: Final answer
    x = 297,114,711,763.18

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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.