Finding the Fourth Proportional to 6,315,148.81, 8,712,915.95 and 3,865,205.80
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Solution
The fourth proportional to 6,315,148.81, 8,712,915.95 and 3,865,205.80 is: 5,332,766.38
Step by Step Solution
- Step 1: Write the proportion equation
6,315,148.81 : 8,712,915.95 = 3,865,205.80 : x - Step 2: Convert to fraction form
6,315,148.81/8,712,915.95 = 3,865,205.80/x - Step 3: Cross multiply
6,315,148.81x = 8,712,915.95 × 3,865,205.80 - Step 4: Simplify right side
6,315,148.81x = 33,677,213,252,733.23 - Step 5: Solve for x
x = 33,677,213,252,733.23/6,315,148.81 - Step 6: Final answer
x = 5,332,766.38
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1.5x scale
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.