Finding the Fourth Proportional to 31,215,507.84, 46,840,398.88 and 15,864,121.60
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Solution
The fourth proportional to 31,215,507.84, 46,840,398.88 and 15,864,121.60 is: 23,804,891.70
Step by Step Solution
- Step 1: Write the proportion equation
31,215,507.84 : 46,840,398.88 = 15,864,121.60 : x - Step 2: Convert to fraction form
31,215,507.84/46,840,398.88 = 15,864,121.60/x - Step 3: Cross multiply
31,215,507.84x = 46,840,398.88 × 15,864,121.60 - Step 4: Simplify right side
31,215,507.84x = 743,081,783,624,823.88 - Step 5: Solve for x
x = 743,081,783,624,823.88/31,215,507.84 - Step 6: Final answer
x = 23,804,891.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.