Finding the Fourth Proportional to 20,939,292.12, 31,417,593.84 and 9,261,523.74
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Solution
The fourth proportional to 20,939,292.12, 31,417,593.84 and 9,261,523.74 is: 13,896,114.04
Step by Step Solution
- Step 1: Write the proportion equation
20,939,292.12 : 31,417,593.84 = 9,261,523.74 : x - Step 2: Convert to fraction form
20,939,292.12/31,417,593.84 = 9,261,523.74/x - Step 3: Cross multiply
20,939,292.12x = 31,417,593.84 × 9,261,523.74 - Step 4: Simplify right side
20,939,292.12x = 290,974,791,202,837.75 - Step 5: Solve for x
x = 290,974,791,202,837.75/20,939,292.12 - Step 6: Final answer
x = 13,896,114.04
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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.