Finding the Fourth Proportional to 18,189,686.70, 27,284,530.05 and 15,745,058.10
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Solution
The fourth proportional to 18,189,686.70, 27,284,530.05 and 15,745,058.10 is: 23,617,587.15
Step by Step Solution
- Step 1: Write the proportion equation
18,189,686.70 : 27,284,530.05 = 15,745,058.10 : x - Step 2: Convert to fraction form
18,189,686.70/27,284,530.05 = 15,745,058.10/x - Step 3: Cross multiply
18,189,686.70x = 27,284,530.05 × 15,745,058.10 - Step 4: Simplify right side
18,189,686.70x = 429,596,510,868,445.94 - Step 5: Solve for x
x = 429,596,510,868,445.94/18,189,686.70 - Step 6: Final answer
x = 23,617,587.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.