Finding the Fourth Proportional to 30,807,345.18, 42,515,703.99 and 17,057,821.98
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Solution
The fourth proportional to 30,807,345.18, 42,515,703.99 and 17,057,821.98 is: 23,540,662.33
Step by Step Solution
- Step 1: Write the proportion equation
30,807,345.18 : 42,515,703.99 = 17,057,821.98 : x - Step 2: Convert to fraction form
30,807,345.18/42,515,703.99 = 17,057,821.98/x - Step 3: Cross multiply
30,807,345.18x = 42,515,703.99 × 17,057,821.98 - Step 4: Simplify right side
30,807,345.18x = 725,225,310,015,795.75 - Step 5: Solve for x
x = 725,225,310,015,795.75/30,807,345.18 - Step 6: Final answer
x = 23,540,662.33
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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.