Finding the Fourth Proportional to 5,639,023.68, 7,781,832.96 and 3,060,704.40
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Solution
The fourth proportional to 5,639,023.68, 7,781,832.96 and 3,060,704.40 is: 4,223,761.37
Step by Step Solution
- Step 1: Write the proportion equation
5,639,023.68 : 7,781,832.96 = 3,060,704.40 : x - Step 2: Convert to fraction form
5,639,023.68/7,781,832.96 = 3,060,704.40/x - Step 3: Cross multiply
5,639,023.68x = 7,781,832.96 × 3,060,704.40 - Step 4: Simplify right side
5,639,023.68x = 23,817,890,380,737.02 - Step 5: Solve for x
x = 23,817,890,380,737.02/5,639,023.68 - Step 6: Final answer
x = 4,223,761.37
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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.