Finding the Fourth Proportional to 243,125,821.69, 335,513,737.57 and 131,616,659.47
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Solution
The fourth proportional to 243,125,821.69, 335,513,737.57 and 131,616,659.47 is: 181,631,046.17
Step by Step Solution
- Step 1: Write the proportion equation
243,125,821.69 : 335,513,737.57 = 131,616,659.47 : x - Step 2: Convert to fraction form
243,125,821.69/335,513,737.57 = 131,616,659.47/x - Step 3: Cross multiply
243,125,821.69x = 335,513,737.57 × 131,616,659.47 - Step 4: Simplify right side
243,125,821.69x = 44,159,197,345,257,632 - Step 5: Solve for x
x = 44,159,197,345,257,632/243,125,821.69 - Step 6: Final answer
x = 181,631,046.17
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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.