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Finding the Fourth Proportional to 11,978,275.40, 17,967,413.10 and 4,403,673.80

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Solution

The fourth proportional to 11,978,275.40, 17,967,413.10 and 4,403,673.80 is: 6,605,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,978,275.40 : 17,967,413.10 = 4,403,673.80 : x
  2. Step 2: Convert to fraction form
    11,978,275.40/17,967,413.10 = 4,403,673.80/x
  3. Step 3: Cross multiply
    11,978,275.40x = 17,967,413.10 × 4,403,673.80
  4. Step 4: Simplify right side
    11,978,275.40x = 79,122,626,322,246.78
  5. Step 5: Solve for x
    x = 79,122,626,322,246.78/11,978,275.40
  6. Step 6: Final answer
    x = 6,605,510.70

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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.