Home / 386,571,938,952.96-533,485,809,999.16-215,293,842,977.80

Finding the Fourth Proportional to 386,571,938,952.96, 533,485,809,999.16 and 215,293,842,977.80

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Solution

The fourth proportional to 386,571,938,952.96, 533,485,809,999.16 and 215,293,842,977.80 is: 297,114,711,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,571,938,952.96 : 533,485,809,999.16 = 215,293,842,977.80 : x
  2. Step 2: Convert to fraction form
    386,571,938,952.96/533,485,809,999.16 = 215,293,842,977.80/x
  3. Step 3: Cross multiply
    386,571,938,952.96x = 533,485,809,999.16 × 215,293,842,977.80
  4. Step 4: Simplify right side
    386,571,938,952.96x = 114,856,210,208,843,582,406,656
  5. Step 5: Solve for x
    x = 114,856,210,208,843,582,406,656/386,571,938,952.96
  6. Step 6: Final answer
    x = 297,114,711,740.16

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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.