Home / 821,143,077.78-1,133,182,888.44-444,799,665.54

Finding the Fourth Proportional to 821,143,077.78, 1,133,182,888.44 and 444,799,665.54

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Solution

The fourth proportional to 821,143,077.78, 1,133,182,888.44 and 444,799,665.54 is: 613,826,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,143,077.78 : 1,133,182,888.44 = 444,799,665.54 : x
  2. Step 2: Convert to fraction form
    821,143,077.78/1,133,182,888.44 = 444,799,665.54/x
  3. Step 3: Cross multiply
    821,143,077.78x = 1,133,182,888.44 × 444,799,665.54
  4. Step 4: Simplify right side
    821,143,077.78x = 504,039,369,773,763,200
  5. Step 5: Solve for x
    x = 504,039,369,773,763,200/821,143,077.78
  6. Step 6: Final answer
    x = 613,826,485.80

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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.