Finding the Fourth Proportional to 12,726,720.68, 17,563,269.83 and 7,220,327.49
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Solution
The fourth proportional to 12,726,720.68, 17,563,269.83 and 7,220,327.49 is: 9,964,276.20
Step by Step Solution
- Step 1: Write the proportion equation
12,726,720.68 : 17,563,269.83 = 7,220,327.49 : x - Step 2: Convert to fraction form
12,726,720.68/17,563,269.83 = 7,220,327.49/x - Step 3: Cross multiply
12,726,720.68x = 17,563,269.83 × 7,220,327.49 - Step 4: Simplify right side
12,726,720.68x = 126,812,559,931,734.98 - Step 5: Solve for x
x = 126,812,559,931,734.98/12,726,720.68 - Step 6: Final answer
x = 9,964,276.20
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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.