Finding the Fourth Proportional to 7,141,622.18, 9,858,454.54 and 4,821,657.44
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Solution
The fourth proportional to 7,141,622.18, 9,858,454.54 and 4,821,657.44 is: 6,655,923.47
Step by Step Solution
- Step 1: Write the proportion equation
7,141,622.18 : 9,858,454.54 = 4,821,657.44 : x - Step 2: Convert to fraction form
7,141,622.18/9,858,454.54 = 4,821,657.44/x - Step 3: Cross multiply
7,141,622.18x = 9,858,454.54 × 4,821,657.44 - Step 4: Simplify right side
7,141,622.18x = 47,534,090,679,692.77 - Step 5: Solve for x
x = 47,534,090,679,692.77/7,141,622.18 - Step 6: Final answer
x = 6,655,923.47
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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.