Finding the Fourth Proportional to 30,387,465.99, 41,938,696.60 and 17,331,732.09
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Solution
The fourth proportional to 30,387,465.99, 41,938,696.60 and 17,331,732.09 is: 23,920,068.03
Step by Step Solution
- Step 1: Write the proportion equation
30,387,465.99 : 41,938,696.60 = 17,331,732.09 : x - Step 2: Convert to fraction form
30,387,465.99/41,938,696.60 = 17,331,732.09/x - Step 3: Cross multiply
30,387,465.99x = 41,938,696.60 × 17,331,732.09 - Step 4: Simplify right side
30,387,465.99x = 726,870,253,674,993.88 - Step 5: Solve for x
x = 726,870,253,674,993.88/30,387,465.99 - Step 6: Final answer
x = 23,920,068.03
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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.