Finding the Fourth Proportional to 13,307,562.80, 18,364,546.74 and 7,347,161.60
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Solution
The fourth proportional to 13,307,562.80, 18,364,546.74 and 7,347,161.60 is: 10,139,143.78
Step by Step Solution
- Step 1: Write the proportion equation
13,307,562.80 : 18,364,546.74 = 7,347,161.60 : x - Step 2: Convert to fraction form
13,307,562.80/18,364,546.74 = 7,347,161.60/x - Step 3: Cross multiply
13,307,562.80x = 18,364,546.74 × 7,347,161.60 - Step 4: Simplify right side
13,307,562.80x = 134,927,292,609,533.17 - Step 5: Solve for x
x = 134,927,292,609,533.17/13,307,562.80 - Step 6: Final answer
x = 10,139,143.78
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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.