Finding the Fourth Proportional to 18,135,290.97, 27,213,565.29 and 13,012,199.73
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Solution
The fourth proportional to 18,135,290.97, 27,213,565.29 and 13,012,199.73 is: 19,525,925.86
Step by Step Solution
- Step 1: Write the proportion equation
18,135,290.97 : 27,213,565.29 = 13,012,199.73 : x - Step 2: Convert to fraction form
18,135,290.97/27,213,565.29 = 13,012,199.73/x - Step 3: Cross multiply
18,135,290.97x = 27,213,565.29 × 13,012,199.73 - Step 4: Simplify right side
18,135,290.97x = 354,108,346,918,875.38 - Step 5: Solve for x
x = 354,108,346,918,875.38/18,135,290.97 - Step 6: Final answer
x = 19,525,925.86
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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.