Finding the Fourth Proportional to 21,142,586.84, 29,177,570.32 and 11,850,327.14
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Solution
The fourth proportional to 21,142,586.84, 29,177,570.32 and 11,850,327.14 is: 16,353,900.12
Step by Step Solution
- Step 1: Write the proportion equation
21,142,586.84 : 29,177,570.32 = 11,850,327.14 : x - Step 2: Convert to fraction form
21,142,586.84/29,177,570.32 = 11,850,327.14/x - Step 3: Cross multiply
21,142,586.84x = 29,177,570.32 × 11,850,327.14 - Step 4: Simplify right side
21,142,586.84x = 345,763,753,442,354.50 - Step 5: Solve for x
x = 345,763,753,442,354.50/21,142,586.84 - Step 6: Final answer
x = 16,353,900.12
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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.