Finding the Fourth Proportional to 18,387,816.80, 27,539,734.80 and 10,829,544.80
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Solution
The fourth proportional to 18,387,816.80, 27,539,734.80 and 10,829,544.80 is: 16,219,586.86
Step by Step Solution
- Step 1: Write the proportion equation
18,387,816.80 : 27,539,734.80 = 10,829,544.80 : x - Step 2: Convert to fraction form
18,387,816.80/27,539,734.80 = 10,829,544.80/x - Step 3: Cross multiply
18,387,816.80x = 27,539,734.80 × 10,829,544.80 - Step 4: Simplify right side
18,387,816.80x = 298,242,791,796,719.06 - Step 5: Solve for x
x = 298,242,791,796,719.06/18,387,816.80 - Step 6: Final answer
x = 16,219,586.86
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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.