Finding the Fourth Proportional to 189,028,880.18, 283,543,320.43 and 45,421,712.18
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Solution
The fourth proportional to 189,028,880.18, 283,543,320.43 and 45,421,712.18 is: 68,132,568.31
Step by Step Solution
- Step 1: Write the proportion equation
189,028,880.18 : 283,543,320.43 = 45,421,712.18 : x - Step 2: Convert to fraction form
189,028,880.18/283,543,320.43 = 45,421,712.18/x - Step 3: Cross multiply
189,028,880.18x = 283,543,320.43 × 45,421,712.18 - Step 4: Simplify right side
189,028,880.18x = 12,879,023,091,132,974 - Step 5: Solve for x
x = 12,879,023,091,132,974/189,028,880.18 - Step 6: Final answer
x = 68,132,568.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.