Finding the Fourth Proportional to 19,943,420.02, 27,517,231.80 and 12,102,755.30
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Solution
The fourth proportional to 19,943,420.02, 27,517,231.80 and 12,102,755.30 is: 16,698,957.48
Step by Step Solution
- Step 1: Write the proportion equation
19,943,420.02 : 27,517,231.80 = 12,102,755.30 : x - Step 2: Convert to fraction form
19,943,420.02/27,517,231.80 = 12,102,755.30/x - Step 3: Cross multiply
19,943,420.02x = 27,517,231.80 × 12,102,755.30 - Step 4: Simplify right side
19,943,420.02x = 333,034,323,008,778.56 - Step 5: Solve for x
x = 333,034,323,008,778.56/19,943,420.02 - Step 6: Final answer
x = 16,698,957.48
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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.