Finding the Fourth Proportional to 21,425,125.84, 29,559,480.52 and 12,131,425.68
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Solution
The fourth proportional to 21,425,125.84, 29,559,480.52 and 12,131,425.68 is: 16,737,294.51
Step by Step Solution
- Step 1: Write the proportion equation
21,425,125.84 : 29,559,480.52 = 12,131,425.68 : x - Step 2: Convert to fraction form
21,425,125.84/29,559,480.52 = 12,131,425.68/x - Step 3: Cross multiply
21,425,125.84x = 29,559,480.52 × 12,131,425.68 - Step 4: Simplify right side
21,425,125.84x = 358,598,641,067,787.75 - Step 5: Solve for x
x = 358,598,641,067,787.75/21,425,125.84 - Step 6: Final answer
x = 16,737,294.51
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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.