Finding the Fourth Proportional to 13,235,811.66, 18,265,863.66 and 7,355,693.69
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Solution
The fourth proportional to 13,235,811.66, 18,265,863.66 and 7,355,693.69 is: 10,151,103.80
Step by Step Solution
- Step 1: Write the proportion equation
13,235,811.66 : 18,265,863.66 = 7,355,693.69 : x - Step 2: Convert to fraction form
13,235,811.66/18,265,863.66 = 7,355,693.69/x - Step 3: Cross multiply
13,235,811.66x = 18,265,863.66 × 7,355,693.69 - Step 4: Simplify right side
13,235,811.66x = 134,358,098,066,262.31 - Step 5: Solve for x
x = 134,358,098,066,262.31/13,235,811.66 - Step 6: Final answer
x = 10,151,103.80
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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.