Finding the Fourth Proportional to 21,478,043.73, 29,645,946.09 and 14,036,825.13
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Solution
The fourth proportional to 21,478,043.73, 29,645,946.09 and 14,036,825.13 is: 19,374,900.54
Step by Step Solution
- Step 1: Write the proportion equation
21,478,043.73 : 29,645,946.09 = 14,036,825.13 : x - Step 2: Convert to fraction form
21,478,043.73/29,645,946.09 = 14,036,825.13/x - Step 3: Cross multiply
21,478,043.73x = 29,645,946.09 × 14,036,825.13 - Step 4: Simplify right side
21,478,043.73x = 416,134,961,078,737.25 - Step 5: Solve for x
x = 416,134,961,078,737.25/21,478,043.73 - Step 6: Final answer
x = 19,374,900.54
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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.