Finding the Fourth Proportional to 486,403,419.48, 671,284,639.50 and 277,590,992.28
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Solution
The fourth proportional to 486,403,419.48, 671,284,639.50 and 277,590,992.28 is: 383,102,917.70
Step by Step Solution
- Step 1: Write the proportion equation
486,403,419.48 : 671,284,639.50 = 277,590,992.28 : x - Step 2: Convert to fraction form
486,403,419.48/671,284,639.50 = 277,590,992.28/x - Step 3: Cross multiply
486,403,419.48x = 671,284,639.50 × 277,590,992.28 - Step 4: Simplify right side
486,403,419.48x = 186,342,569,181,127,072 - Step 5: Solve for x
x = 186,342,569,181,127,072/486,403,419.48 - Step 6: Final answer
x = 383,102,917.70
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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.