Finding the Fourth Proportional to 21,723,702.12, 29,975,376.42 and 12,554,574.12
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Solution
The fourth proportional to 21,723,702.12, 29,975,376.42 and 12,554,574.12 is: 17,323,386.36
Step by Step Solution
- Step 1: Write the proportion equation
21,723,702.12 : 29,975,376.42 = 12,554,574.12 : x - Step 2: Convert to fraction form
21,723,702.12/29,975,376.42 = 12,554,574.12/x - Step 3: Cross multiply
21,723,702.12x = 29,975,376.42 × 12,554,574.12 - Step 4: Simplify right side
21,723,702.12x = 376,328,085,039,790.25 - Step 5: Solve for x
x = 376,328,085,039,790.25/21,723,702.12 - Step 6: Final answer
x = 17,323,386.36
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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.