Finding the Fourth Proportional to 212,616,265.20, 318,924,397.80 and 115,618,441.20
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Solution
The fourth proportional to 212,616,265.20, 318,924,397.80 and 115,618,441.20 is: 173,427,661.80
Step by Step Solution
- Step 1: Write the proportion equation
212,616,265.20 : 318,924,397.80 = 115,618,441.20 : x - Step 2: Convert to fraction form
212,616,265.20/318,924,397.80 = 115,618,441.20/x - Step 3: Cross multiply
212,616,265.20x = 318,924,397.80 × 115,618,441.20 - Step 4: Simplify right side
212,616,265.20x = 36,873,541,734,284,712 - Step 5: Solve for x
x = 36,873,541,734,284,712/212,616,265.20 - Step 6: Final answer
x = 173,427,661.80
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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.