Finding the Fourth Proportional to 20,582,689.14, 30,876,881.60 and 6,939,737.54
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Solution
The fourth proportional to 20,582,689.14, 30,876,881.60 and 6,939,737.54 is: 10,410,566.52
Step by Step Solution
- Step 1: Write the proportion equation
20,582,689.14 : 30,876,881.60 = 6,939,737.54 : x - Step 2: Convert to fraction form
20,582,689.14/30,876,881.60 = 6,939,737.54/x - Step 3: Cross multiply
20,582,689.14x = 30,876,881.60 × 6,939,737.54 - Step 4: Simplify right side
20,582,689.14x = 214,277,454,357,655.28 - Step 5: Solve for x
x = 214,277,454,357,655.28/20,582,689.14 - Step 6: Final answer
x = 10,410,566.52
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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.