Finding the Fourth Proportional to 15,193,460,403, 20,967,098,463.83 and 8,419,392,135.09
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Solution
The fourth proportional to 15,193,460,403, 20,967,098,463.83 and 8,419,392,135.09 is: 11,618,829,366.03
Step by Step Solution
- Step 1: Write the proportion equation
15,193,460,403 : 20,967,098,463.83 = 8,419,392,135.09 : x - Step 2: Convert to fraction form
15,193,460,403/20,967,098,463.83 = 8,419,392,135.09/x - Step 3: Cross multiply
15,193,460,403x = 20,967,098,463.83 × 8,419,392,135.09 - Step 4: Simplify right side
15,193,460,403x = 176,530,223,901,985,832,960 - Step 5: Solve for x
x = 176,530,223,901,985,832,960/15,193,460,403 - Step 6: Final answer
x = 11,618,829,366.03
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1.5x scale
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.