Finding the Fourth Proportional to 354,623,009.60, 531,934,514.40 and 218,574,113.60
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Solution
The fourth proportional to 354,623,009.60, 531,934,514.40 and 218,574,113.60 is: 327,861,170.40
Step by Step Solution
- Step 1: Write the proportion equation
354,623,009.60 : 531,934,514.40 = 218,574,113.60 : x - Step 2: Convert to fraction form
354,623,009.60/531,934,514.40 = 218,574,113.60/x - Step 3: Cross multiply
354,623,009.60x = 531,934,514.40 × 218,574,113.60 - Step 4: Simplify right side
354,623,009.60x = 116,267,114,978,226,432 - Step 5: Solve for x
x = 116,267,114,978,226,432/354,623,009.60 - Step 6: Final answer
x = 327,861,170.40
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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.