Finding the Fourth Proportional to 33,020,368.90, 45,568,252.20 and 18,335,990.14
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Solution
The fourth proportional to 33,020,368.90, 45,568,252.20 and 18,335,990.14 is: 25,303,745.87
Step by Step Solution
- Step 1: Write the proportion equation
33,020,368.90 : 45,568,252.20 = 18,335,990.14 : x - Step 2: Convert to fraction form
33,020,368.90/45,568,252.20 = 18,335,990.14/x - Step 3: Cross multiply
33,020,368.90x = 45,568,252.20 × 18,335,990.14 - Step 4: Simplify right side
33,020,368.90x = 835,539,023,036,233.38 - Step 5: Solve for x
x = 835,539,023,036,233.38/33,020,368.90 - Step 6: Final answer
x = 25,303,745.87
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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.