Finding the Fourth Proportional to 7,166,336.24, 9,889,554.12 and 3,903,163.76
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Solution
The fourth proportional to 7,166,336.24, 9,889,554.12 and 3,903,163.76 is: 5,386,371.49
Step by Step Solution
- Step 1: Write the proportion equation
7,166,336.24 : 9,889,554.12 = 3,903,163.76 : x - Step 2: Convert to fraction form
7,166,336.24/9,889,554.12 = 3,903,163.76/x - Step 3: Cross multiply
7,166,336.24x = 9,889,554.12 × 3,903,163.76 - Step 4: Simplify right side
7,166,336.24x = 38,600,549,243,742.69 - Step 5: Solve for x
x = 38,600,549,243,742.69/7,166,336.24 - Step 6: Final answer
x = 5,386,371.49
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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.