Finding the Fourth Proportional to 31,730,787.92, 47,596,197.84 and 20,945,568.08
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Solution
The fourth proportional to 31,730,787.92, 47,596,197.84 and 20,945,568.08 is: 31,418,362.66
Step by Step Solution
- Step 1: Write the proportion equation
31,730,787.92 : 47,596,197.84 = 20,945,568.08 : x - Step 2: Convert to fraction form
31,730,787.92/47,596,197.84 = 20,945,568.08/x - Step 3: Cross multiply
31,730,787.92x = 47,596,197.84 × 20,945,568.08 - Step 4: Simplify right side
31,730,787.92x = 996,929,402,206,868.88 - Step 5: Solve for x
x = 996,929,402,206,868.88/31,730,787.92 - Step 6: Final answer
x = 31,418,362.66
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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.