Home / 6,378,413.76-9,565,987.68-1,889,640

Finding the Fourth Proportional to 6,378,413.76, 9,565,987.68 and 1,889,640

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Solution

The fourth proportional to 6,378,413.76, 9,565,987.68 and 1,889,640 is: 2,833,976.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378,413.76 : 9,565,987.68 = 1,889,640 : x
  2. Step 2: Convert to fraction form
    6,378,413.76/9,565,987.68 = 1,889,640/x
  3. Step 3: Cross multiply
    6,378,413.76x = 9,565,987.68 × 1,889,640
  4. Step 4: Simplify right side
    6,378,413.76x = 18,076,272,959,635.20
  5. Step 5: Solve for x
    x = 18,076,272,959,635.20/6,378,413.76
  6. Step 6: Final answer
    x = 2,833,976.23

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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.