Finding the Fourth Proportional to 212,616,266.70, 318,924,400.05 and 115,618,442.70
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Solution
The fourth proportional to 212,616,266.70, 318,924,400.05 and 115,618,442.70 is: 173,427,664.05
Step by Step Solution
- Step 1: Write the proportion equation
212,616,266.70 : 318,924,400.05 = 115,618,442.70 : x - Step 2: Convert to fraction form
212,616,266.70/318,924,400.05 = 115,618,442.70/x - Step 3: Cross multiply
212,616,266.70x = 318,924,400.05 × 115,618,442.70 - Step 4: Simplify right side
212,616,266.70x = 36,873,542,472,812,808 - Step 5: Solve for x
x = 36,873,542,472,812,808/212,616,266.70 - Step 6: Final answer
x = 173,427,664.05
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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.