Finding the Fourth Proportional to 155,423,998.60, 233,135,997.90 and 47,704,625.80
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Solution
The fourth proportional to 155,423,998.60, 233,135,997.90 and 47,704,625.80 is: 71,556,938.70
Step by Step Solution
- Step 1: Write the proportion equation
155,423,998.60 : 233,135,997.90 = 47,704,625.80 : x - Step 2: Convert to fraction form
155,423,998.60/233,135,997.90 = 47,704,625.80/x - Step 3: Cross multiply
155,423,998.60x = 233,135,997.90 × 47,704,625.80 - Step 4: Simplify right side
155,423,998.60x = 11,121,665,540,329,086 - Step 5: Solve for x
x = 11,121,665,540,329,086/155,423,998.60 - Step 6: Final answer
x = 71,556,938.70
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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.