Finding the Fourth Proportional to 19,929,072.60, 29,892,053.70 and 7,796,179.80
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Solution
The fourth proportional to 19,929,072.60, 29,892,053.70 and 7,796,179.80 is: 11,693,661.31
Step by Step Solution
- Step 1: Write the proportion equation
19,929,072.60 : 29,892,053.70 = 7,796,179.80 : x - Step 2: Convert to fraction form
19,929,072.60/29,892,053.70 = 7,796,179.80/x - Step 3: Cross multiply
19,929,072.60x = 29,892,053.70 × 7,796,179.80 - Step 4: Simplify right side
19,929,072.60x = 233,043,825,236,455.25 - Step 5: Solve for x
x = 233,043,825,236,455.25/19,929,072.60 - Step 6: Final answer
x = 11,693,661.31
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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.