Finding the Fourth Proportional to 10,485,674.19, 15,708,360.69 and 6,430,336.50
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Solution
The fourth proportional to 10,485,674.19, 15,708,360.69 and 6,430,336.50 is: 9,633,147.40
Step by Step Solution
- Step 1: Write the proportion equation
10,485,674.19 : 15,708,360.69 = 6,430,336.50 : x - Step 2: Convert to fraction form
10,485,674.19/15,708,360.69 = 6,430,336.50/x - Step 3: Cross multiply
10,485,674.19x = 15,708,360.69 × 6,430,336.50 - Step 4: Simplify right side
10,485,674.19x = 101,010,045,100,072.19 - Step 5: Solve for x
x = 101,010,045,100,072.19/10,485,674.19 - Step 6: Final answer
x = 9,633,147.40
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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.