Finding the Fourth Proportional to 21,268,856.84, 29,350,873.14 and 11,611,064.84
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Solution
The fourth proportional to 21,268,856.84, 29,350,873.14 and 11,611,064.84 is: 16,023,187.97
Step by Step Solution
- Step 1: Write the proportion equation
21,268,856.84 : 29,350,873.14 = 11,611,064.84 : x - Step 2: Convert to fraction form
21,268,856.84/29,350,873.14 = 11,611,064.84/x - Step 3: Cross multiply
21,268,856.84x = 29,350,873.14 × 11,611,064.84 - Step 4: Simplify right side
21,268,856.84x = 340,794,891,139,154.38 - Step 5: Solve for x
x = 340,794,891,139,154.38/21,268,856.84 - Step 6: Final answer
x = 16,023,187.97
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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.