Finding the Fourth Proportional to 21,687,939.26, 29,929,353.95 and 12,268,528.98
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Solution
The fourth proportional to 21,687,939.26, 29,929,353.95 and 12,268,528.98 is: 16,930,568.74
Step by Step Solution
- Step 1: Write the proportion equation
21,687,939.26 : 29,929,353.95 = 12,268,528.98 : x - Step 2: Convert to fraction form
21,687,939.26/29,929,353.95 = 12,268,528.98/x - Step 3: Cross multiply
21,687,939.26x = 29,929,353.95 × 12,268,528.98 - Step 4: Simplify right side
21,687,939.26x = 367,189,146,348,111.50 - Step 5: Solve for x
x = 367,189,146,348,111.50/21,687,939.26 - Step 6: Final answer
x = 16,930,568.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.