Finding the Fourth Proportional to 71,832,699.47, 99,129,121.48 and 38,792,945.44
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Solution
The fourth proportional to 71,832,699.47, 99,129,121.48 and 38,792,945.44 is: 53,534,262.66
Step by Step Solution
- Step 1: Write the proportion equation
71,832,699.47 : 99,129,121.48 = 38,792,945.44 : x - Step 2: Convert to fraction form
71,832,699.47/99,129,121.48 = 38,792,945.44/x - Step 3: Cross multiply
71,832,699.47x = 99,129,121.48 × 38,792,945.44 - Step 4: Simplify right side
71,832,699.47x = 3,845,510,601,088,772 - Step 5: Solve for x
x = 3,845,510,601,088,772/71,832,699.47 - Step 6: Final answer
x = 53,534,262.66
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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.