Finding the Fourth Proportional to 372,649,394.56, 514,235,179.20 and 205,385,148.96
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Solution
The fourth proportional to 372,649,394.56, 514,235,179.20 and 205,385,148.96 is: 283,419,939.55
Step by Step Solution
- Step 1: Write the proportion equation
372,649,394.56 : 514,235,179.20 = 205,385,148.96 : x - Step 2: Convert to fraction form
372,649,394.56/514,235,179.20 = 205,385,148.96/x - Step 3: Cross multiply
372,649,394.56x = 514,235,179.20 × 205,385,148.96 - Step 4: Simplify right side
372,649,394.56x = 105,616,268,880,464,288 - Step 5: Solve for x
x = 105,616,268,880,464,288/372,649,394.56 - Step 6: Final answer
x = 283,419,939.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.