Finding the Fourth Proportional to 10,551,163.42, 15,829,232.64 and 8,400,319.66
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Solution
The fourth proportional to 10,551,163.42, 15,829,232.64 and 8,400,319.66 is: 12,602,459.92
Step by Step Solution
- Step 1: Write the proportion equation
10,551,163.42 : 15,829,232.64 = 8,400,319.66 : x - Step 2: Convert to fraction form
10,551,163.42/15,829,232.64 = 8,400,319.66/x - Step 3: Cross multiply
10,551,163.42x = 15,829,232.64 × 8,400,319.66 - Step 4: Simplify right side
10,551,163.42x = 132,970,614,148,505.70 - Step 5: Solve for x
x = 132,970,614,148,505.70/10,551,163.42 - Step 6: Final answer
x = 12,602,459.92
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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.