Finding the Fourth Proportional to 168,135,771.70, 252,203,657.55 and 100,111,323.70
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Solution
The fourth proportional to 168,135,771.70, 252,203,657.55 and 100,111,323.70 is: 150,166,985.55
Step by Step Solution
- Step 1: Write the proportion equation
168,135,771.70 : 252,203,657.55 = 100,111,323.70 : x - Step 2: Convert to fraction form
168,135,771.70/252,203,657.55 = 100,111,323.70/x - Step 3: Cross multiply
168,135,771.70x = 252,203,657.55 × 100,111,323.70 - Step 4: Simplify right side
168,135,771.70x = 25,248,441,999,312,000 - Step 5: Solve for x
x = 25,248,441,999,312,000/168,135,771.70 - Step 6: Final answer
x = 150,166,985.55
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1.5x scale
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.