Finding the Fourth Proportional to 8,340,738.62, 12,512,941.76 and 4,748,187.74
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Solution
The fourth proportional to 8,340,738.62, 12,512,941.76 and 4,748,187.74 is: 7,123,325.56
Step by Step Solution
- Step 1: Write the proportion equation
8,340,738.62 : 12,512,941.76 = 4,748,187.74 : x - Step 2: Convert to fraction form
8,340,738.62/12,512,941.76 = 4,748,187.74/x - Step 3: Cross multiply
8,340,738.62x = 12,512,941.76 × 4,748,187.74 - Step 4: Simplify right side
8,340,738.62x = 59,413,796,605,471.78 - Step 5: Solve for x
x = 59,413,796,605,471.78/8,340,738.62 - Step 6: Final answer
x = 7,123,325.56
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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.