Finding the Fourth Proportional to 133,059,553.30, 199,589,329.95 and 81,775,278.10
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Solution
The fourth proportional to 133,059,553.30, 199,589,329.95 and 81,775,278.10 is: 122,662,917.15
Step by Step Solution
- Step 1: Write the proportion equation
133,059,553.30 : 199,589,329.95 = 81,775,278.10 : x - Step 2: Convert to fraction form
133,059,553.30/199,589,329.95 = 81,775,278.10/x - Step 3: Cross multiply
133,059,553.30x = 199,589,329.95 × 81,775,278.10 - Step 4: Simplify right side
133,059,553.30x = 16,321,472,962,453,906 - Step 5: Solve for x
x = 16,321,472,962,453,906/133,059,553.30 - Step 6: Final answer
x = 122,662,917.15
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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.