Finding the Fourth Proportional to 6,121,872.97, 8,447,931.36 and 3,331,007.71
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Solution
The fourth proportional to 6,121,872.97, 8,447,931.36 and 3,331,007.71 is: 4,596,652.80
Step by Step Solution
- Step 1: Write the proportion equation
6,121,872.97 : 8,447,931.36 = 3,331,007.71 : x - Step 2: Convert to fraction form
6,121,872.97/8,447,931.36 = 3,331,007.71/x - Step 3: Cross multiply
6,121,872.97x = 8,447,931.36 × 3,331,007.71 - Step 4: Simplify right side
6,121,872.97x = 28,140,124,532,601.85 - Step 5: Solve for x
x = 28,140,124,532,601.85/6,121,872.97 - Step 6: Final answer
x = 4,596,652.80
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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.