Finding the Fourth Proportional to 21,893,122.29, 30,211,210.29 and 12,102,982.63
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Solution
The fourth proportional to 21,893,122.29, 30,211,210.29 and 12,102,982.63 is: 16,701,398.21
Step by Step Solution
- Step 1: Write the proportion equation
21,893,122.29 : 30,211,210.29 = 12,102,982.63 : x - Step 2: Convert to fraction form
21,893,122.29/30,211,210.29 = 12,102,982.63/x - Step 3: Cross multiply
21,893,122.29x = 30,211,210.29 × 12,102,982.63 - Step 4: Simplify right side
21,893,122.29x = 365,645,753,371,147.25 - Step 5: Solve for x
x = 365,645,753,371,147.25/21,893,122.29 - Step 6: Final answer
x = 16,701,398.21
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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.