Finding the Fourth Proportional to 523,346,440.28, 722,222,863.99 and 288,405,530.42
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Solution
The fourth proportional to 523,346,440.28, 722,222,863.99 and 288,405,530.42 is: 398,002,264.15
Step by Step Solution
- Step 1: Write the proportion equation
523,346,440.28 : 722,222,863.99 = 288,405,530.42 : x - Step 2: Convert to fraction form
523,346,440.28/722,222,863.99 = 288,405,530.42/x - Step 3: Cross multiply
523,346,440.28x = 722,222,863.99 × 288,405,530.42 - Step 4: Simplify right side
523,346,440.28x = 208,293,068,166,155,328 - Step 5: Solve for x
x = 208,293,068,166,155,328/523,346,440.28 - Step 6: Final answer
x = 398,002,264.15
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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.