Home / 85,293,083.40-127,939,625.10-42,168,942.60

Finding the Fourth Proportional to 85,293,083.40, 127,939,625.10 and 42,168,942.60

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Solution

The fourth proportional to 85,293,083.40, 127,939,625.10 and 42,168,942.60 is: 63,253,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,083.40 : 127,939,625.10 = 42,168,942.60 : x
  2. Step 2: Convert to fraction form
    85,293,083.40/127,939,625.10 = 42,168,942.60/x
  3. Step 3: Cross multiply
    85,293,083.40x = 127,939,625.10 × 42,168,942.60
  4. Step 4: Simplify right side
    85,293,083.40x = 5,395,078,707,107,419
  5. Step 5: Solve for x
    x = 5,395,078,707,107,419/85,293,083.40
  6. Step 6: Final answer
    x = 63,253,413.90

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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.