Finding the Fourth Proportional to 420,246,378.95, 579,933,949.24 and 232,082,634.59
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Solution
The fourth proportional to 420,246,378.95, 579,933,949.24 and 232,082,634.59 is: 320,270,692.54
Step by Step Solution
- Step 1: Write the proportion equation
420,246,378.95 : 579,933,949.24 = 232,082,634.59 : x - Step 2: Convert to fraction form
420,246,378.95/579,933,949.24 = 232,082,634.59/x - Step 3: Cross multiply
420,246,378.95x = 579,933,949.24 × 232,082,634.59 - Step 4: Simplify right side
420,246,378.95x = 134,592,598,824,428,000 - Step 5: Solve for x
x = 134,592,598,824,428,000/420,246,378.95 - Step 6: Final answer
x = 320,270,692.54
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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.