Finding the Fourth Proportional to 21,283,914.42, 31,929,310.44 and 8,989,725.96
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Solution
The fourth proportional to 21,283,914.42, 31,929,310.44 and 8,989,725.96 is: 13,486,041.40
Step by Step Solution
- Step 1: Write the proportion equation
21,283,914.42 : 31,929,310.44 = 8,989,725.96 : x - Step 2: Convert to fraction form
21,283,914.42/31,929,310.44 = 8,989,725.96/x - Step 3: Cross multiply
21,283,914.42x = 31,929,310.44 × 8,989,725.96 - Step 4: Simplify right side
21,283,914.42x = 287,035,750,947,367.06 - Step 5: Solve for x
x = 287,035,750,947,367.06/21,283,914.42 - Step 6: Final answer
x = 13,486,041.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.