Finding the Fourth Proportional to 564,128,911.40, 846,193,367.10 and 321,816,309.80
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Solution
The fourth proportional to 564,128,911.40, 846,193,367.10 and 321,816,309.80 is: 482,724,464.70
Step by Step Solution
- Step 1: Write the proportion equation
564,128,911.40 : 846,193,367.10 = 321,816,309.80 : x - Step 2: Convert to fraction form
564,128,911.40/846,193,367.10 = 321,816,309.80/x - Step 3: Cross multiply
564,128,911.40x = 846,193,367.10 × 321,816,309.80 - Step 4: Simplify right side
564,128,911.40x = 272,318,826,777,358,752 - Step 5: Solve for x
x = 272,318,826,777,358,752/564,128,911.40 - Step 6: Final answer
x = 482,724,464.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.