Finding the Fourth Proportional to 435,620,161.20, 653,430,241.80 and 206,037,649.20
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Solution
The fourth proportional to 435,620,161.20, 653,430,241.80 and 206,037,649.20 is: 309,056,473.80
Step by Step Solution
- Step 1: Write the proportion equation
435,620,161.20 : 653,430,241.80 = 206,037,649.20 : x - Step 2: Convert to fraction form
435,620,161.20/653,430,241.80 = 206,037,649.20/x - Step 3: Cross multiply
435,620,161.20x = 653,430,241.80 × 206,037,649.20 - Step 4: Simplify right side
435,620,161.20x = 134,631,230,936,659,552 - Step 5: Solve for x
x = 134,631,230,936,659,552/435,620,161.20 - Step 6: Final answer
x = 309,056,473.80
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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.