Finding the Fourth Proportional to 14,980,284.18, 20,672,785.17 and 8,455,282.20
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Solution
The fourth proportional to 14,980,284.18, 20,672,785.17 and 8,455,282.20 is: 11,668,285.49
Step by Step Solution
- Step 1: Write the proportion equation
14,980,284.18 : 20,672,785.17 = 8,455,282.20 : x - Step 2: Convert to fraction form
14,980,284.18/20,672,785.17 = 8,455,282.20/x - Step 3: Cross multiply
14,980,284.18x = 20,672,785.17 × 8,455,282.20 - Step 4: Simplify right side
14,980,284.18x = 174,794,232,472,324.97 - Step 5: Solve for x
x = 174,794,232,472,324.97/14,980,284.18 - Step 6: Final answer
x = 11,668,285.49
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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.