Finding the Fourth Proportional to 78,474,032.36, 117,603,431.73 and 49,668,749.18
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Solution
The fourth proportional to 78,474,032.36, 117,603,431.73 and 49,668,749.18 is: 74,435,009.62
Step by Step Solution
- Step 1: Write the proportion equation
78,474,032.36 : 117,603,431.73 = 49,668,749.18 : x - Step 2: Convert to fraction form
78,474,032.36/117,603,431.73 = 49,668,749.18/x - Step 3: Cross multiply
78,474,032.36x = 117,603,431.73 × 49,668,749.18 - Step 4: Simplify right side
78,474,032.36x = 5,841,215,353,157,620 - Step 5: Solve for x
x = 5,841,215,353,157,620/78,474,032.36 - Step 6: Final answer
x = 74,435,009.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.