Finding the Fourth Proportional to 21,474,147.68, 29,623,030.92 and 12,766,126
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Solution
The fourth proportional to 21,474,147.68, 29,623,030.92 and 12,766,126 is: 17,610,540.40
Step by Step Solution
- Step 1: Write the proportion equation
21,474,147.68 : 29,623,030.92 = 12,766,126 : x - Step 2: Convert to fraction form
21,474,147.68/29,623,030.92 = 12,766,126/x - Step 3: Cross multiply
21,474,147.68x = 29,623,030.92 × 12,766,126 - Step 4: Simplify right side
21,474,147.68x = 378,171,345,226,615.94 - Step 5: Solve for x
x = 378,171,345,226,615.94/21,474,147.68 - Step 6: Final answer
x = 17,610,540.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.