Finding the Fourth Proportional to 299,974,338.09, 449,916,043.35 and 81,641,693.95
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Solution
The fourth proportional to 299,974,338.09, 449,916,043.35 and 81,641,693.95 is: 122,450,167.40
Step by Step Solution
- Step 1: Write the proportion equation
299,974,338.09 : 449,916,043.35 = 81,641,693.95 : x - Step 2: Convert to fraction form
299,974,338.09/449,916,043.35 = 81,641,693.95/x - Step 3: Cross multiply
299,974,338.09x = 449,916,043.35 × 81,641,693.95 - Step 4: Simplify right side
299,974,338.09x = 36,731,907,913,557,816 - Step 5: Solve for x
x = 36,731,907,913,557,816/299,974,338.09 - Step 6: Final answer
x = 122,450,167.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.