Finding the Fourth Proportional to 287,673,314.40, 396,965,169.36 and 162,218,479.68
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Solution
The fourth proportional to 287,673,314.40, 396,965,169.36 and 162,218,479.68 is: 223,847,965.86
Step by Step Solution
- Step 1: Write the proportion equation
287,673,314.40 : 396,965,169.36 = 162,218,479.68 : x - Step 2: Convert to fraction form
287,673,314.40/396,965,169.36 = 162,218,479.68/x - Step 3: Cross multiply
287,673,314.40x = 396,965,169.36 × 162,218,479.68 - Step 4: Simplify right side
287,673,314.40x = 64,395,086,259,492,920 - Step 5: Solve for x
x = 64,395,086,259,492,920/287,673,314.40 - Step 6: Final answer
x = 223,847,965.86
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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.