Home / 386,571,938,969.13-533,485,810,021.50-215,293,842,993.97

Finding the Fourth Proportional to 386,571,938,969.13, 533,485,810,021.50 and 215,293,842,993.97

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Solution

The fourth proportional to 386,571,938,969.13, 533,485,810,021.50 and 215,293,842,993.97 is: 297,114,711,762.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,571,938,969.13 : 533,485,810,021.50 = 215,293,842,993.97 : x
  2. Step 2: Convert to fraction form
    386,571,938,969.13/533,485,810,021.50 = 215,293,842,993.97/x
  3. Step 3: Cross multiply
    386,571,938,969.13x = 533,485,810,021.50 × 215,293,842,993.97
  4. Step 4: Simplify right side
    386,571,938,969.13x = 114,856,210,222,279,733,280,768
  5. Step 5: Solve for x
    x = 114,856,210,222,279,733,280,768/386,571,938,969.13
  6. Step 6: Final answer
    x = 297,114,711,762.49

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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.