Finding the Fourth Proportional to 13,235,434.05, 18,265,342.01 and 7,355,316.09
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Solution
The fourth proportional to 13,235,434.05, 18,265,342.01 and 7,355,316.09 is: 10,150,582.40
Step by Step Solution
- Step 1: Write the proportion equation
13,235,434.05 : 18,265,342.01 = 7,355,316.09 : x - Step 2: Convert to fraction form
13,235,434.05/18,265,342.01 = 7,355,316.09/x - Step 3: Cross multiply
13,235,434.05x = 18,265,342.01 × 7,355,316.09 - Step 4: Simplify right side
13,235,434.05x = 134,347,364,005,967.59 - Step 5: Solve for x
x = 134,347,364,005,967.59/13,235,434.05 - Step 6: Final answer
x = 10,150,582.40
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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.