Finding the Fourth Proportional to 20,620,603.22, 28,453,269.13 and 11,917,094.99
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Solution
The fourth proportional to 20,620,603.22, 28,453,269.13 and 11,917,094.99 is: 16,443,762.93
Step by Step Solution
- Step 1: Write the proportion equation
20,620,603.22 : 28,453,269.13 = 11,917,094.99 : x - Step 2: Convert to fraction form
20,620,603.22/28,453,269.13 = 11,917,094.99/x - Step 3: Cross multiply
20,620,603.22x = 28,453,269.13 × 11,917,094.99 - Step 4: Simplify right side
20,620,603.22x = 339,080,310,826,185.56 - Step 5: Solve for x
x = 339,080,310,826,185.56/20,620,603.22 - Step 6: Final answer
x = 16,443,762.93
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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.