Finding the Fourth Proportional to 327,804,390.40, 491,706,585.60 and 164,545,715.20
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Solution
The fourth proportional to 327,804,390.40, 491,706,585.60 and 164,545,715.20 is: 246,818,572.80
Step by Step Solution
- Step 1: Write the proportion equation
327,804,390.40 : 491,706,585.60 = 164,545,715.20 : x - Step 2: Convert to fraction form
327,804,390.40/491,706,585.60 = 164,545,715.20/x - Step 3: Cross multiply
327,804,390.40x = 491,706,585.60 × 164,545,715.20 - Step 4: Simplify right side
327,804,390.40x = 80,908,211,796,102,016 - Step 5: Solve for x
x = 80,908,211,796,102,016/327,804,390.40 - Step 6: Final answer
x = 246,818,572.80
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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.