Finding the Fourth Proportional to 221,282,845.49, 305,410,298.74 and 131,980,514.07
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Solution
The fourth proportional to 221,282,845.49, 305,410,298.74 and 131,980,514.07 is: 182,156,950.04
Step by Step Solution
- Step 1: Write the proportion equation
221,282,845.49 : 305,410,298.74 = 131,980,514.07 : x - Step 2: Convert to fraction form
221,282,845.49/305,410,298.74 = 131,980,514.07/x - Step 3: Cross multiply
221,282,845.49x = 305,410,298.74 × 131,980,514.07 - Step 4: Simplify right side
221,282,845.49x = 40,308,208,229,977,472 - Step 5: Solve for x
x = 40,308,208,229,977,472/221,282,845.49 - Step 6: Final answer
x = 182,156,950.04
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.