Finding the Fourth Proportional to 165,884,520.70, 248,826,781.05 and 84,255,183.10
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Solution
The fourth proportional to 165,884,520.70, 248,826,781.05 and 84,255,183.10 is: 126,382,774.65
Step by Step Solution
- Step 1: Write the proportion equation
165,884,520.70 : 248,826,781.05 = 84,255,183.10 : x - Step 2: Convert to fraction form
165,884,520.70/248,826,781.05 = 84,255,183.10/x - Step 3: Cross multiply
165,884,520.70x = 248,826,781.05 × 84,255,183.10 - Step 4: Simplify right side
165,884,520.70x = 20,964,945,997,551,360 - Step 5: Solve for x
x = 20,964,945,997,551,360/165,884,520.70 - Step 6: Final answer
x = 126,382,774.65
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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.