Finding the Fourth Proportional to 28,430,639.66, 39,258,198.57 and 17,995,065.68
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Solution
The fourth proportional to 28,430,639.66, 39,258,198.57 and 17,995,065.68 is: 24,848,328.08
Step by Step Solution
- Step 1: Write the proportion equation
28,430,639.66 : 39,258,198.57 = 17,995,065.68 : x - Step 2: Convert to fraction form
28,430,639.66/39,258,198.57 = 17,995,065.68/x - Step 3: Cross multiply
28,430,639.66x = 39,258,198.57 × 17,995,065.68 - Step 4: Simplify right side
28,430,639.66x = 706,453,861,549,341.12 - Step 5: Solve for x
x = 706,453,861,549,341.12/28,430,639.66 - Step 6: Final answer
x = 24,848,328.08
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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.