Finding the Fourth Proportional to 18,071,443.44, 27,099,207.72 and 8,489,545.20
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Solution
The fourth proportional to 18,071,443.44, 27,099,207.72 and 8,489,545.20 is: 12,730,579.58
Step by Step Solution
- Step 1: Write the proportion equation
18,071,443.44 : 27,099,207.72 = 8,489,545.20 : x - Step 2: Convert to fraction form
18,071,443.44/27,099,207.72 = 8,489,545.20/x - Step 3: Cross multiply
18,071,443.44x = 27,099,207.72 × 8,489,545.20 - Step 4: Simplify right side
18,071,443.44x = 230,059,948,823,128.91 - Step 5: Solve for x
x = 230,059,948,823,128.91/18,071,443.44 - Step 6: Final answer
x = 12,730,579.58
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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.