Finding the Fourth Proportional to 212,490,007.96, 318,827,642.28 and 74,414,665.06
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Solution
The fourth proportional to 212,490,007.96, 318,827,642.28 and 74,414,665.06 is: 111,654,437.02
Step by Step Solution
- Step 1: Write the proportion equation
212,490,007.96 : 318,827,642.28 = 74,414,665.06 : x - Step 2: Convert to fraction form
212,490,007.96/318,827,642.28 = 74,414,665.06/x - Step 3: Cross multiply
212,490,007.96x = 318,827,642.28 × 74,414,665.06 - Step 4: Simplify right side
212,490,007.96x = 23,725,452,212,135,692 - Step 5: Solve for x
x = 23,725,452,212,135,692/212,490,007.96 - Step 6: Final answer
x = 111,654,437.02
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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.