Finding the Fourth Proportional to 20,862,107.70, 31,293,161.55 and 14,484,815.70
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Solution
The fourth proportional to 20,862,107.70, 31,293,161.55 and 14,484,815.70 is: 21,727,223.55
Step by Step Solution
- Step 1: Write the proportion equation
20,862,107.70 : 31,293,161.55 = 14,484,815.70 : x - Step 2: Convert to fraction form
20,862,107.70/31,293,161.55 = 14,484,815.70/x - Step 3: Cross multiply
20,862,107.70x = 31,293,161.55 × 14,484,815.70 - Step 4: Simplify right side
20,862,107.70x = 453,275,677,722,076.31 - Step 5: Solve for x
x = 453,275,677,722,076.31/20,862,107.70 - Step 6: Final answer
x = 21,727,223.55
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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.