Finding the Fourth Proportional to 305,744,559.21, 421,932,345.60 and 173,582,858.88
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Solution
The fourth proportional to 305,744,559.21, 421,932,345.60 and 173,582,858.88 is: 239,547,100.99
Step by Step Solution
- Step 1: Write the proportion equation
305,744,559.21 : 421,932,345.60 = 173,582,858.88 : x - Step 2: Convert to fraction form
305,744,559.21/421,932,345.60 = 173,582,858.88/x - Step 3: Cross multiply
305,744,559.21x = 421,932,345.60 × 173,582,858.88 - Step 4: Simplify right side
305,744,559.21x = 73,240,222,803,192,192 - Step 5: Solve for x
x = 73,240,222,803,192,192/305,744,559.21 - Step 6: Final answer
x = 239,547,100.99
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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.