Home / 228,268,140.75-315,010,821.56-123,846,676.47

Finding the Fourth Proportional to 228,268,140.75, 315,010,821.56 and 123,846,676.47

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Solution

The fourth proportional to 228,268,140.75, 315,010,821.56 and 123,846,676.47 is: 170,908,840.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,268,140.75 : 315,010,821.56 = 123,846,676.47 : x
  2. Step 2: Convert to fraction form
    228,268,140.75/315,010,821.56 = 123,846,676.47/x
  3. Step 3: Cross multiply
    228,268,140.75x = 315,010,821.56 × 123,846,676.47
  4. Step 4: Simplify right side
    228,268,140.75x = 39,013,043,301,670,984
  5. Step 5: Solve for x
    x = 39,013,043,301,670,984/228,268,140.75
  6. Step 6: Final answer
    x = 170,908,840.69

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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.