Finding the Fourth Proportional to 11,421,017.12, 15,760,961.60 and 7,069,236.96
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Solution
The fourth proportional to 11,421,017.12, 15,760,961.60 and 7,069,236.96 is: 9,755,520.99
Step by Step Solution
- Step 1: Write the proportion equation
11,421,017.12 : 15,760,961.60 = 7,069,236.96 : x - Step 2: Convert to fraction form
11,421,017.12/15,760,961.60 = 7,069,236.96/x - Step 3: Cross multiply
11,421,017.12x = 15,760,961.60 × 7,069,236.96 - Step 4: Simplify right side
11,421,017.12x = 111,417,972,267,860.73 - Step 5: Solve for x
x = 111,417,972,267,860.73/11,421,017.12 - Step 6: Final answer
x = 9,755,520.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.