Finding the Fourth Proportional to 147,517,849.40, 221,276,774.10 and 74,958,438.20
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Solution
The fourth proportional to 147,517,849.40, 221,276,774.10 and 74,958,438.20 is: 112,437,657.30
Step by Step Solution
- Step 1: Write the proportion equation
147,517,849.40 : 221,276,774.10 = 74,958,438.20 : x - Step 2: Convert to fraction form
147,517,849.40/221,276,774.10 = 74,958,438.20/x - Step 3: Cross multiply
147,517,849.40x = 221,276,774.10 × 74,958,438.20 - Step 4: Simplify right side
147,517,849.40x = 16,586,561,396,470,210 - Step 5: Solve for x
x = 16,586,561,396,470,210/147,517,849.40 - Step 6: Final answer
x = 112,437,657.30
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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.