Finding the Fourth Proportional to 19,789,371.40, 29,684,057.10 and 15,304,865.80
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Solution
The fourth proportional to 19,789,371.40, 29,684,057.10 and 15,304,865.80 is: 22,957,298.70
Step by Step Solution
- Step 1: Write the proportion equation
19,789,371.40 : 29,684,057.10 = 15,304,865.80 : x - Step 2: Convert to fraction form
19,789,371.40/29,684,057.10 = 15,304,865.80/x - Step 3: Cross multiply
19,789,371.40x = 29,684,057.10 × 15,304,865.80 - Step 4: Simplify right side
19,789,371.40x = 454,310,510,315,037.25 - Step 5: Solve for x
x = 454,310,510,315,037.25/19,789,371.40 - Step 6: Final answer
x = 22,957,298.70
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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.