Finding the Fourth Proportional to 11,438,315.16, 15,784,817.54 and 6,211,276.62
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Solution
The fourth proportional to 11,438,315.16, 15,784,817.54 and 6,211,276.62 is: 8,571,530.58
Step by Step Solution
- Step 1: Write the proportion equation
11,438,315.16 : 15,784,817.54 = 6,211,276.62 : x - Step 2: Convert to fraction form
11,438,315.16/15,784,817.54 = 6,211,276.62/x - Step 3: Cross multiply
11,438,315.16x = 15,784,817.54 × 6,211,276.62 - Step 4: Simplify right side
11,438,315.16x = 98,043,868,137,167.91 - Step 5: Solve for x
x = 98,043,868,137,167.91/11,438,315.16 - Step 6: Final answer
x = 8,571,530.58
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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.