Finding the Fourth Proportional to 71,168,078.16, 106,756,801.18 and 18,647,035.65
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Solution
The fourth proportional to 71,168,078.16, 106,756,801.18 and 18,647,035.65 is: 27,971,780.73
Step by Step Solution
- Step 1: Write the proportion equation
71,168,078.16 : 106,756,801.18 = 18,647,035.65 : x - Step 2: Convert to fraction form
71,168,078.16/106,756,801.18 = 18,647,035.65/x - Step 3: Cross multiply
71,168,078.16x = 106,756,801.18 × 18,647,035.65 - Step 4: Simplify right side
71,168,078.16x = 1,990,697,877,436,804.25 - Step 5: Solve for x
x = 1,990,697,877,436,804.25/71,168,078.16 - Step 6: Final answer
x = 27,971,780.73
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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.