Finding the Fourth Proportional to 353,505,381.54, 487,896,790.80 and 204,919,447.92
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Solution
The fourth proportional to 353,505,381.54, 487,896,790.80 and 204,919,447.92 is: 282,823,250.32
Step by Step Solution
- Step 1: Write the proportion equation
353,505,381.54 : 487,896,790.80 = 204,919,447.92 : x - Step 2: Convert to fraction form
353,505,381.54/487,896,790.80 = 204,919,447.92/x - Step 3: Cross multiply
353,505,381.54x = 487,896,790.80 × 204,919,447.92 - Step 4: Simplify right side
353,505,381.54x = 99,979,541,012,675,728 - Step 5: Solve for x
x = 99,979,541,012,675,728/353,505,381.54 - Step 6: Final answer
x = 282,823,250.32
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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.