Home / 821,829,029.54-1,233,167,368.82-385,174,074.83

Finding the Fourth Proportional to 821,829,029.54, 1,233,167,368.82 and 385,174,074.83

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Solution

The fourth proportional to 821,829,029.54, 1,233,167,368.82 and 385,174,074.83 is: 577,959,749.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,829,029.54 : 1,233,167,368.82 = 385,174,074.83 : x
  2. Step 2: Convert to fraction form
    821,829,029.54/1,233,167,368.82 = 385,174,074.83/x
  3. Step 3: Cross multiply
    821,829,029.54x = 1,233,167,368.82 × 385,174,074.83
  4. Step 4: Simplify right side
    821,829,029.54x = 474,984,100,396,945,920
  5. Step 5: Solve for x
    x = 474,984,100,396,945,920/821,829,029.54
  6. Step 6: Final answer
    x = 577,959,749.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.