Finding the Fourth Proportional to 18,517,603.40, 27,768,110.70 and 8,415,024.20
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Solution
The fourth proportional to 18,517,603.40, 27,768,110.70 and 8,415,024.20 is: 12,618,767.04
Step by Step Solution
- Step 1: Write the proportion equation
18,517,603.40 : 27,768,110.70 = 8,415,024.20 : x - Step 2: Convert to fraction form
18,517,603.40/27,768,110.70 = 8,415,024.20/x - Step 3: Cross multiply
18,517,603.40x = 27,768,110.70 × 8,415,024.20 - Step 4: Simplify right side
18,517,603.40x = 233,669,323,528,778.91 - Step 5: Solve for x
x = 233,669,323,528,778.91/18,517,603.40 - Step 6: Final answer
x = 12,618,767.04
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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.