Finding the Fourth Proportional to 9,639,646.44, 13,302,847.84 and 5,288,653.68
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Solution
The fourth proportional to 9,639,646.44, 13,302,847.84 and 5,288,653.68 is: 7,298,416.56
Step by Step Solution
- Step 1: Write the proportion equation
9,639,646.44 : 13,302,847.84 = 5,288,653.68 : x - Step 2: Convert to fraction form
9,639,646.44/13,302,847.84 = 5,288,653.68/x - Step 3: Cross multiply
9,639,646.44x = 13,302,847.84 × 5,288,653.68 - Step 4: Simplify right side
9,639,646.44x = 70,354,155,183,496.05 - Step 5: Solve for x
x = 70,354,155,183,496.05/9,639,646.44 - Step 6: Final answer
x = 7,298,416.56
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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.