Finding the Fourth Proportional to 18,299,455.80, 27,417,690.90 and 11,906,417.40
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Solution
The fourth proportional to 18,299,455.80, 27,417,690.90 and 11,906,417.40 is: 17,839,135.52
Step by Step Solution
- Step 1: Write the proportion equation
18,299,455.80 : 27,417,690.90 = 11,906,417.40 : x - Step 2: Convert to fraction form
18,299,455.80/27,417,690.90 = 11,906,417.40/x - Step 3: Cross multiply
18,299,455.80x = 27,417,690.90 × 11,906,417.40 - Step 4: Simplify right side
18,299,455.80x = 326,446,471,999,581.62 - Step 5: Solve for x
x = 326,446,471,999,581.62/18,299,455.80 - Step 6: Final answer
x = 17,839,135.52
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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.