Finding the Fourth Proportional to 14,786,658.18, 20,404,859.58 and 8,258,988.06
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Solution
The fourth proportional to 14,786,658.18, 20,404,859.58 and 8,258,988.06 is: 11,396,996.51
Step by Step Solution
- Step 1: Write the proportion equation
14,786,658.18 : 20,404,859.58 = 8,258,988.06 : x - Step 2: Convert to fraction form
14,786,658.18/20,404,859.58 = 8,258,988.06/x - Step 3: Cross multiply
14,786,658.18x = 20,404,859.58 × 8,258,988.06 - Step 4: Simplify right side
14,786,658.18x = 168,523,491,637,196.59 - Step 5: Solve for x
x = 168,523,491,637,196.59/14,786,658.18 - Step 6: Final answer
x = 11,396,996.51
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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.