Finding the Fourth Proportional to 19,753,786.73, 29,778,738.79 and 18,436,994.03
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Solution
The fourth proportional to 19,753,786.73, 29,778,738.79 and 18,436,994.03 is: 27,793,680.11
Step by Step Solution
- Step 1: Write the proportion equation
19,753,786.73 : 29,778,738.79 = 18,436,994.03 : x - Step 2: Convert to fraction form
19,753,786.73/29,778,738.79 = 18,436,994.03/x - Step 3: Cross multiply
19,753,786.73x = 29,778,738.79 × 18,436,994.03 - Step 4: Simplify right side
19,753,786.73x = 549,030,429,292,159.44 - Step 5: Solve for x
x = 549,030,429,292,159.44/19,753,786.73 - Step 6: Final answer
x = 27,793,680.11
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.