Finding the Fourth Proportional to 61,321,329.72, 84,602,065.74 and 39,306,967.92
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Solution
The fourth proportional to 61,321,329.72, 84,602,065.74 and 39,306,967.92 is: 54,229,918.03
Step by Step Solution
- Step 1: Write the proportion equation
61,321,329.72 : 84,602,065.74 = 39,306,967.92 : x - Step 2: Convert to fraction form
61,321,329.72/84,602,065.74 = 39,306,967.92/x - Step 3: Cross multiply
61,321,329.72x = 84,602,065.74 × 39,306,967.92 - Step 4: Simplify right side
61,321,329.72x = 3,325,450,684,007,911 - Step 5: Solve for x
x = 3,325,450,684,007,911/61,321,329.72 - Step 6: Final answer
x = 54,229,918.03
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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.