Finding the Fourth Proportional to 22,989,868.92, 31,728,147.66 and 13,201,595.64
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Solution
The fourth proportional to 22,989,868.92, 31,728,147.66 and 13,201,595.64 is: 18,219,424.27
Step by Step Solution
- Step 1: Write the proportion equation
22,989,868.92 : 31,728,147.66 = 13,201,595.64 : x - Step 2: Convert to fraction form
22,989,868.92/31,728,147.66 = 13,201,595.64/x - Step 3: Cross multiply
22,989,868.92x = 31,728,147.66 × 13,201,595.64 - Step 4: Simplify right side
22,989,868.92x = 418,862,175,813,532.25 - Step 5: Solve for x
x = 418,862,175,813,532.25/22,989,868.92 - Step 6: Final answer
x = 18,219,424.27
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1.5x scale
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.