Finding the Fourth Proportional to 15,133,958.97, 20,885,307.62 and 8,258,884.71
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Solution
The fourth proportional to 15,133,958.97, 20,885,307.62 and 8,258,884.71 is: 11,397,503.33
Step by Step Solution
- Step 1: Write the proportion equation
15,133,958.97 : 20,885,307.62 = 8,258,884.71 : x - Step 2: Convert to fraction form
15,133,958.97/20,885,307.62 = 8,258,884.71/x - Step 3: Cross multiply
15,133,958.97x = 20,885,307.62 × 8,258,884.71 - Step 4: Simplify right side
15,133,958.97x = 172,489,347,725,170.06 - Step 5: Solve for x
x = 172,489,347,725,170.06/15,133,958.97 - Step 6: Final answer
x = 11,397,503.33
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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.