Finding the Fourth Proportional to 287,673,317.40, 396,965,173.50 and 162,218,482.68
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Solution
The fourth proportional to 287,673,317.40, 396,965,173.50 and 162,218,482.68 is: 223,847,970.00
Step by Step Solution
- Step 1: Write the proportion equation
287,673,317.40 : 396,965,173.50 = 162,218,482.68 : x - Step 2: Convert to fraction form
287,673,317.40/396,965,173.50 = 162,218,482.68/x - Step 3: Cross multiply
287,673,317.40x = 396,965,173.50 × 162,218,482.68 - Step 4: Simplify right side
287,673,317.40x = 64,395,088,121,972,944 - Step 5: Solve for x
x = 64,395,088,121,972,944/287,673,317.40 - Step 6: Final answer
x = 223,847,970.00
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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.