Finding the Fourth Proportional to 289,243,129.76, 399,277,645.60 and 195,284,557.52
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Solution
The fourth proportional to 289,243,129.76, 399,277,645.60 and 195,284,557.52 is: 269,575,143.97
Step by Step Solution
- Step 1: Write the proportion equation
289,243,129.76 : 399,277,645.60 = 195,284,557.52 : x - Step 2: Convert to fraction form
289,243,129.76/399,277,645.60 = 195,284,557.52/x - Step 3: Cross multiply
289,243,129.76x = 399,277,645.60 × 195,284,557.52 - Step 4: Simplify right side
289,243,129.76x = 77,972,758,348,623,376 - Step 5: Solve for x
x = 77,972,758,348,623,376/289,243,129.76 - Step 6: Final answer
x = 269,575,143.97
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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.