Finding the Fourth Proportional to 76,985,232.84, 115,477,997.85 and 18,692,665.02
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Solution
The fourth proportional to 76,985,232.84, 115,477,997.85 and 18,692,665.02 is: 28,039,033.61
Step by Step Solution
- Step 1: Write the proportion equation
76,985,232.84 : 115,477,997.85 = 18,692,665.02 : x - Step 2: Convert to fraction form
76,985,232.84/115,477,997.85 = 18,692,665.02/x - Step 3: Cross multiply
76,985,232.84x = 115,477,997.85 × 18,692,665.02 - Step 4: Simplify right side
76,985,232.84x = 2,158,591,530,990,330 - Step 5: Solve for x
x = 2,158,591,530,990,330/76,985,232.84 - Step 6: Final answer
x = 28,039,033.61
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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.