Finding the Fourth Proportional to 74,412,447.96, 102,690,372.48 and 40,923,250.68
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Solution
The fourth proportional to 74,412,447.96, 102,690,372.48 and 40,923,250.68 is: 56,474,742.74
Step by Step Solution
- Step 1: Write the proportion equation
74,412,447.96 : 102,690,372.48 = 40,923,250.68 : x - Step 2: Convert to fraction form
74,412,447.96/102,690,372.48 = 40,923,250.68/x - Step 3: Cross multiply
74,412,447.96x = 102,690,372.48 × 40,923,250.68 - Step 4: Simplify right side
74,412,447.96x = 4,202,423,855,421,613.50 - Step 5: Solve for x
x = 4,202,423,855,421,613.50/74,412,447.96 - Step 6: Final answer
x = 56,474,742.74
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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.