Finding the Fourth Proportional to 3,905,416.22, 5,389,013.63 and 2,251,544.85
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Solution
The fourth proportional to 3,905,416.22, 5,389,013.63 and 2,251,544.85 is: 3,106,866.27
Step by Step Solution
- Step 1: Write the proportion equation
3,905,416.22 : 5,389,013.63 = 2,251,544.85 : x - Step 2: Convert to fraction form
3,905,416.22/5,389,013.63 = 2,251,544.85/x - Step 3: Cross multiply
3,905,416.22x = 5,389,013.63 × 2,251,544.85 - Step 4: Simplify right side
3,905,416.22x = 12,133,605,890,835.17 - Step 5: Solve for x
x = 12,133,605,890,835.17/3,905,416.22 - Step 6: Final answer
x = 3,106,866.27
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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.