Finding the Fourth Proportional to 15,766,306.36, 21,763,402.86 and 12,274,726.84
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Solution
The fourth proportional to 15,766,306.36, 21,763,402.86 and 12,274,726.84 is: 16,943,716.50
Step by Step Solution
- Step 1: Write the proportion equation
15,766,306.36 : 21,763,402.86 = 12,274,726.84 : x - Step 2: Convert to fraction form
15,766,306.36/21,763,402.86 = 12,274,726.84/x - Step 3: Cross multiply
15,766,306.36x = 21,763,402.86 × 12,274,726.84 - Step 4: Simplify right side
15,766,306.36x = 267,139,825,215,374.75 - Step 5: Solve for x
x = 267,139,825,215,374.75/15,766,306.36 - Step 6: Final answer
x = 16,943,716.50
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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.