Finding the Fourth Proportional to 38,318,451.48, 57,486,828.60 and 12,759,682.32
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Solution
The fourth proportional to 38,318,451.48, 57,486,828.60 and 12,759,682.32 is: 19,142,570.80
Step by Step Solution
- Step 1: Write the proportion equation
38,318,451.48 : 57,486,828.60 = 12,759,682.32 : x - Step 2: Convert to fraction form
38,318,451.48/57,486,828.60 = 12,759,682.32/x - Step 3: Cross multiply
38,318,451.48x = 57,486,828.60 × 12,759,682.32 - Step 4: Simplify right side
38,318,451.48x = 733,513,670,520,290.38 - Step 5: Solve for x
x = 733,513,670,520,290.38/38,318,451.48 - Step 6: Final answer
x = 19,142,570.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.