Finding the Fourth Proportional to 39,253,965.68, 54,172,258.44 and 21,851,414.48
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Solution
The fourth proportional to 39,253,965.68, 54,172,258.44 and 21,851,414.48 is: 30,155,946.08
Step by Step Solution
- Step 1: Write the proportion equation
39,253,965.68 : 54,172,258.44 = 21,851,414.48 : x - Step 2: Convert to fraction form
39,253,965.68/54,172,258.44 = 21,851,414.48/x - Step 3: Cross multiply
39,253,965.68x = 54,172,258.44 × 21,851,414.48 - Step 4: Simplify right side
39,253,965.68x = 1,183,740,472,490,118.25 - Step 5: Solve for x
x = 1,183,740,472,490,118.25/39,253,965.68 - Step 6: Final answer
x = 30,155,946.08
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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.