Finding the Fourth Proportional to 13,548,803.12, 18,697,113.70 and 7,353,716.87
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Solution
The fourth proportional to 13,548,803.12, 18,697,113.70 and 7,353,716.87 is: 10,148,001.94
Step by Step Solution
- Step 1: Write the proportion equation
13,548,803.12 : 18,697,113.70 = 7,353,716.87 : x - Step 2: Convert to fraction form
13,548,803.12/18,697,113.70 = 7,353,716.87/x - Step 3: Cross multiply
13,548,803.12x = 18,697,113.70 × 7,353,716.87 - Step 4: Simplify right side
13,548,803.12x = 137,493,280,399,229.53 - Step 5: Solve for x
x = 137,493,280,399,229.53/13,548,803.12 - Step 6: Final answer
x = 10,148,001.94
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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.