Finding the Fourth Proportional to 74,160,457.56, 102,332,023.48 and 40,661,121.68
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Solution
The fourth proportional to 74,160,457.56, 102,332,023.48 and 40,661,121.68 is: 56,107,189.67
Step by Step Solution
- Step 1: Write the proportion equation
74,160,457.56 : 102,332,023.48 = 40,661,121.68 : x - Step 2: Convert to fraction form
74,160,457.56/102,332,023.48 = 40,661,121.68/x - Step 3: Cross multiply
74,160,457.56x = 102,332,023.48 × 40,661,121.68 - Step 4: Simplify right side
74,160,457.56x = 4,160,934,858,480,897 - Step 5: Solve for x
x = 4,160,934,858,480,897/74,160,457.56 - Step 6: Final answer
x = 56,107,189.67
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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.