Finding the Fourth Proportional to 702,597,735.12, 969,582,262.80 and 389,331,700.80
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Solution
The fourth proportional to 702,597,735.12, 969,582,262.80 and 389,331,700.80 is: 537,276,299.90
Step by Step Solution
- Step 1: Write the proportion equation
702,597,735.12 : 969,582,262.80 = 389,331,700.80 : x - Step 2: Convert to fraction form
702,597,735.12/969,582,262.80 = 389,331,700.80/x - Step 3: Cross multiply
702,597,735.12x = 969,582,262.80 × 389,331,700.80 - Step 4: Simplify right side
702,597,735.12x = 377,489,111,441,436,544 - Step 5: Solve for x
x = 377,489,111,441,436,544/702,597,735.12 - Step 6: Final answer
x = 537,276,299.90
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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.