Home / 386,571,938,952.97-533,485,809,999.15-215,293,842,977.80

Finding the Fourth Proportional to 386,571,938,952.97, 533,485,809,999.15 and 215,293,842,977.80

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Solution

The fourth proportional to 386,571,938,952.97, 533,485,809,999.15 and 215,293,842,977.80 is: 297,114,711,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,571,938,952.97 : 533,485,809,999.15 = 215,293,842,977.80 : x
  2. Step 2: Convert to fraction form
    386,571,938,952.97/533,485,809,999.15 = 215,293,842,977.80/x
  3. Step 3: Cross multiply
    386,571,938,952.97x = 533,485,809,999.15 × 215,293,842,977.80
  4. Step 4: Simplify right side
    386,571,938,952.97x = 114,856,210,208,841,451,700,224
  5. Step 5: Solve for x
    x = 114,856,210,208,841,451,700,224/386,571,938,952.97
  6. Step 6: Final answer
    x = 297,114,711,740.15

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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.