Home / 12,090,350.80-18,111,906.60-7,283,762.20

Finding the Fourth Proportional to 12,090,350.80, 18,111,906.60 and 7,283,762.20

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Solution

The fourth proportional to 12,090,350.80, 18,111,906.60 and 7,283,762.20 is: 10,911,413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,350.80 : 18,111,906.60 = 7,283,762.20 : x
  2. Step 2: Convert to fraction form
    12,090,350.80/18,111,906.60 = 7,283,762.20/x
  3. Step 3: Cross multiply
    12,090,350.80x = 18,111,906.60 × 7,283,762.20
  4. Step 4: Simplify right side
    12,090,350.80x = 131,922,820,663,010.53
  5. Step 5: Solve for x
    x = 131,922,820,663,010.53/12,090,350.80
  6. Step 6: Final answer
    x = 10,911,413.81

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1.5x scale

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.