Finding the Fourth Proportional to 13,217,171.04, 18,240,010.24 and 7,416,381.68
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Solution
The fourth proportional to 13,217,171.04, 18,240,010.24 and 7,416,381.68 is: 10,234,783.02
Step by Step Solution
- Step 1: Write the proportion equation
13,217,171.04 : 18,240,010.24 = 7,416,381.68 : x - Step 2: Convert to fraction form
13,217,171.04/18,240,010.24 = 7,416,381.68/x - Step 3: Cross multiply
13,217,171.04x = 18,240,010.24 × 7,416,381.68 - Step 4: Simplify right side
13,217,171.04x = 135,274,877,786,948.39 - Step 5: Solve for x
x = 135,274,877,786,948.39/13,217,171.04 - Step 6: Final answer
x = 10,234,783.02
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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.