Finding the Fourth Proportional to 10,667,366.20, 15,988,607.70 and 4,274,457.40
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Solution
The fourth proportional to 10,667,366.20, 15,988,607.70 and 4,274,457.40 is: 6,406,700.70
Step by Step Solution
- Step 1: Write the proportion equation
10,667,366.20 : 15,988,607.70 = 4,274,457.40 : x - Step 2: Convert to fraction form
10,667,366.20/15,988,607.70 = 4,274,457.40/x - Step 3: Cross multiply
10,667,366.20x = 15,988,607.70 × 4,274,457.40 - Step 4: Simplify right side
10,667,366.20x = 68,342,622,498,961.98 - Step 5: Solve for x
x = 68,342,622,498,961.98/10,667,366.20 - Step 6: Final answer
x = 6,406,700.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.