Finding the Fourth Proportional to 7,623,699.13, 10,520,855.27 and 4,185,910.09
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Solution
The fourth proportional to 7,623,699.13, 10,520,855.27 and 4,185,910.09 is: 5,776,638.54
Step by Step Solution
- Step 1: Write the proportion equation
7,623,699.13 : 10,520,855.27 = 4,185,910.09 : x - Step 2: Convert to fraction form
7,623,699.13/10,520,855.27 = 4,185,910.09/x - Step 3: Cross multiply
7,623,699.13x = 10,520,855.27 × 4,185,910.09 - Step 4: Simplify right side
7,623,699.13x = 44,039,354,230,122.67 - Step 5: Solve for x
x = 44,039,354,230,122.67/7,623,699.13 - Step 6: Final answer
x = 5,776,638.54
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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.