Finding the Fourth Proportional to 66,430,245.70, 99,645,368.55 and 32,418,021.70
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Solution
The fourth proportional to 66,430,245.70, 99,645,368.55 and 32,418,021.70 is: 48,627,032.55
Step by Step Solution
- Step 1: Write the proportion equation
66,430,245.70 : 99,645,368.55 = 32,418,021.70 : x - Step 2: Convert to fraction form
66,430,245.70/99,645,368.55 = 32,418,021.70/x - Step 3: Cross multiply
66,430,245.70x = 99,645,368.55 × 32,418,021.70 - Step 4: Simplify right side
66,430,245.70x = 3,230,305,719,958,397.50 - Step 5: Solve for x
x = 3,230,305,719,958,397.50/66,430,245.70 - Step 6: Final answer
x = 48,627,032.55
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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.