Finding the Fourth Proportional to 5,163,411.85, 7,125,288.52 and 2,840,156.95
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Solution
The fourth proportional to 5,163,411.85, 7,125,288.52 and 2,840,156.95 is: 3,919,295.67
Step by Step Solution
- Step 1: Write the proportion equation
5,163,411.85 : 7,125,288.52 = 2,840,156.95 : x - Step 2: Convert to fraction form
5,163,411.85/7,125,288.52 = 2,840,156.95/x - Step 3: Cross multiply
5,163,411.85x = 7,125,288.52 × 2,840,156.95 - Step 4: Simplify right side
5,163,411.85x = 20,236,937,710,833.21 - Step 5: Solve for x
x = 20,236,937,710,833.21/5,163,411.85 - Step 6: Final answer
x = 3,919,295.67
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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.