Finding the Fourth Proportional to 354,259,661.80, 531,389,492.70 and 313,948,877.80
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Solution
The fourth proportional to 354,259,661.80, 531,389,492.70 and 313,948,877.80 is: 470,923,316.70
Step by Step Solution
- Step 1: Write the proportion equation
354,259,661.80 : 531,389,492.70 = 313,948,877.80 : x - Step 2: Convert to fraction form
354,259,661.80/531,389,492.70 = 313,948,877.80/x - Step 3: Cross multiply
354,259,661.80x = 531,389,492.70 × 313,948,877.80 - Step 4: Simplify right side
354,259,661.80x = 166,829,134,907,876,288 - Step 5: Solve for x
x = 166,829,134,907,876,288/354,259,661.80 - Step 6: Final answer
x = 470,923,316.70
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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.