Finding the Fourth Proportional to 87,701,471,349.32, 121,024,899,024.64 and 49,638,861,131.96
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Solution
The fourth proportional to 87,701,471,349.32, 121,024,899,024.64 and 49,638,861,131.96 is: 68,499,855,974.65
Step by Step Solution
- Step 1: Write the proportion equation
87,701,471,349.32 : 121,024,899,024.64 = 49,638,861,131.96 : x - Step 2: Convert to fraction form
87,701,471,349.32/121,024,899,024.64 = 49,638,861,131.96/x - Step 3: Cross multiply
87,701,471,349.32x = 121,024,899,024.64 × 49,638,861,131.96 - Step 4: Simplify right side
87,701,471,349.32x = 6,007,538,156,193,586,348,032 - Step 5: Solve for x
x = 6,007,538,156,193,586,348,032/87,701,471,349.32 - Step 6: Final answer
x = 68,499,855,974.65
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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.