Finding the Fourth Proportional to 18,445,058.20, 27,667,587.30 and 18,193,115.80
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Solution
The fourth proportional to 18,445,058.20, 27,667,587.30 and 18,193,115.80 is: 27,289,673.70
Step by Step Solution
- Step 1: Write the proportion equation
18,445,058.20 : 27,667,587.30 = 18,193,115.80 : x - Step 2: Convert to fraction form
18,445,058.20/27,667,587.30 = 18,193,115.80/x - Step 3: Cross multiply
18,445,058.20x = 27,667,587.30 × 18,193,115.80 - Step 4: Simplify right side
18,445,058.20x = 503,359,619,655,509.38 - Step 5: Solve for x
x = 503,359,619,655,509.38/18,445,058.20 - Step 6: Final answer
x = 27,289,673.70
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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.