Finding the Fourth Proportional to 19,578,861.18, 29,224,575.57 and 18,135,998.85
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Solution
The fourth proportional to 19,578,861.18, 29,224,575.57 and 18,135,998.85 is: 27,070,873.23
Step by Step Solution
- Step 1: Write the proportion equation
19,578,861.18 : 29,224,575.57 = 18,135,998.85 : x - Step 2: Convert to fraction form
19,578,861.18/29,224,575.57 = 18,135,998.85/x - Step 3: Cross multiply
19,578,861.18x = 29,224,575.57 × 18,135,998.85 - Step 4: Simplify right side
19,578,861.18x = 530,016,868,929,258.12 - Step 5: Solve for x
x = 530,016,868,929,258.12/19,578,861.18 - Step 6: Final answer
x = 27,070,873.23
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.