Finding the Fourth Proportional to 209,610,998.21, 289,264,299.18 and 120,295,820.23
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Solution
The fourth proportional to 209,610,998.21, 289,264,299.18 and 120,295,820.23 is: 166,008,875.63
Step by Step Solution
- Step 1: Write the proportion equation
209,610,998.21 : 289,264,299.18 = 120,295,820.23 : x - Step 2: Convert to fraction form
209,610,998.21/289,264,299.18 = 120,295,820.23/x - Step 3: Cross multiply
209,610,998.21x = 289,264,299.18 × 120,295,820.23 - Step 4: Simplify right side
209,610,998.21x = 34,797,286,133,114,220 - Step 5: Solve for x
x = 34,797,286,133,114,220/209,610,998.21 - Step 6: Final answer
x = 166,008,875.63
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1.5x scale
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.