Finding the Fourth Proportional to 15,133,958.22, 20,885,306.58 and 8,258,883.96
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Solution
The fourth proportional to 15,133,958.22, 20,885,306.58 and 8,258,883.96 is: 11,397,502.29
Step by Step Solution
- Step 1: Write the proportion equation
15,133,958.22 : 20,885,306.58 = 8,258,883.96 : x - Step 2: Convert to fraction form
15,133,958.22/20,885,306.58 = 8,258,883.96/x - Step 3: Cross multiply
15,133,958.22x = 20,885,306.58 × 8,258,883.96 - Step 4: Simplify right side
15,133,958.22x = 172,489,323,513,244.44 - Step 5: Solve for x
x = 172,489,323,513,244.44/15,133,958.22 - Step 6: Final answer
x = 11,397,502.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.