Finding the Fourth Proportional to 20,253,613.70, 30,377,145.99 and 7,480,134.02
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Solution
The fourth proportional to 20,253,613.70, 30,377,145.99 and 7,480,134.02 is: 11,218,991.66
Step by Step Solution
- Step 1: Write the proportion equation
20,253,613.70 : 30,377,145.99 = 7,480,134.02 : x - Step 2: Convert to fraction form
20,253,613.70/30,377,145.99 = 7,480,134.02/x - Step 3: Cross multiply
20,253,613.70x = 30,377,145.99 × 7,480,134.02 - Step 4: Simplify right side
20,253,613.70x = 227,225,123,150,305.56 - Step 5: Solve for x
x = 227,225,123,150,305.56/20,253,613.70 - Step 6: Final answer
x = 11,218,991.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.