Finding the Fourth Proportional to 21,409,888.44, 29,545,734.78 and 11,620,346.70
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Solution
The fourth proportional to 21,409,888.44, 29,545,734.78 and 11,620,346.70 is: 16,036,126.61
Step by Step Solution
- Step 1: Write the proportion equation
21,409,888.44 : 29,545,734.78 = 11,620,346.70 : x - Step 2: Convert to fraction form
21,409,888.44/29,545,734.78 = 11,620,346.70/x - Step 3: Cross multiply
21,409,888.44x = 29,545,734.78 × 11,620,346.70 - Step 4: Simplify right side
21,409,888.44x = 343,331,681,649,848.19 - Step 5: Solve for x
x = 343,331,681,649,848.19/21,409,888.44 - Step 6: Final answer
x = 16,036,126.61
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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.