Finding the Fourth Proportional to 21,348,826.09, 32,023,243.40 and 7,701,967.96
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Solution
The fourth proportional to 21,348,826.09, 32,023,243.40 and 7,701,967.96 is: 11,552,953.47
Step by Step Solution
- Step 1: Write the proportion equation
21,348,826.09 : 32,023,243.40 = 7,701,967.96 : x - Step 2: Convert to fraction form
21,348,826.09/32,023,243.40 = 7,701,967.96/x - Step 3: Cross multiply
21,348,826.09x = 32,023,243.40 × 7,701,967.96 - Step 4: Simplify right side
21,348,826.09x = 246,641,994,523,513.50 - Step 5: Solve for x
x = 246,641,994,523,513.50/21,348,826.09 - Step 6: Final answer
x = 11,552,953.47
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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.