Finding the Fourth Proportional to 38,974,454.04, 53,784,861.66 and 21,572,007.96
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Solution
The fourth proportional to 38,974,454.04, 53,784,861.66 and 21,572,007.96 is: 29,769,434.68
Step by Step Solution
- Step 1: Write the proportion equation
38,974,454.04 : 53,784,861.66 = 21,572,007.96 : x - Step 2: Convert to fraction form
38,974,454.04/53,784,861.66 = 21,572,007.96/x - Step 3: Cross multiply
38,974,454.04x = 53,784,861.66 × 21,572,007.96 - Step 4: Simplify right side
38,974,454.04x = 1,160,247,463,857,018.75 - Step 5: Solve for x
x = 1,160,247,463,857,018.75/38,974,454.04 - Step 6: Final answer
x = 29,769,434.68
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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.