Finding the Fourth Proportional to 18,569,729.52, 27,852,943.10 and 6,438,921.66
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Solution
The fourth proportional to 18,569,729.52, 27,852,943.10 and 6,438,921.66 is: 9,657,809.95
Step by Step Solution
- Step 1: Write the proportion equation
18,569,729.52 : 27,852,943.10 = 6,438,921.66 : x - Step 2: Convert to fraction form
18,569,729.52/27,852,943.10 = 6,438,921.66/x - Step 3: Cross multiply
18,569,729.52x = 27,852,943.10 × 6,438,921.66 - Step 4: Simplify right side
18,569,729.52x = 179,342,918,589,142.94 - Step 5: Solve for x
x = 179,342,918,589,142.94/18,569,729.52 - Step 6: Final answer
x = 9,657,809.95
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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.