Finding the Fourth Proportional to 39,450,302.50, 54,436,702.50 and 21,806,821.68
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Solution
The fourth proportional to 39,450,302.50, 54,436,702.50 and 21,806,821.68 is: 30,090,807.65
Step by Step Solution
- Step 1: Write the proportion equation
39,450,302.50 : 54,436,702.50 = 21,806,821.68 : x - Step 2: Convert to fraction form
39,450,302.50/54,436,702.50 = 21,806,821.68/x - Step 3: Cross multiply
39,450,302.50x = 54,436,702.50 × 21,806,821.68 - Step 4: Simplify right side
39,450,302.50x = 1,187,091,464,264,710.25 - Step 5: Solve for x
x = 1,187,091,464,264,710.25/39,450,302.50 - Step 6: Final answer
x = 30,090,807.65
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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.