Finding the Fourth Proportional to 5,170,682.64, 7,756,554.90 and 1,978,493.70
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Solution
The fourth proportional to 5,170,682.64, 7,756,554.90 and 1,978,493.70 is: 2,967,943.71
Step by Step Solution
- Step 1: Write the proportion equation
5,170,682.64 : 7,756,554.90 = 1,978,493.70 : x - Step 2: Convert to fraction form
5,170,682.64/7,756,554.90 = 1,978,493.70/x - Step 3: Cross multiply
5,170,682.64x = 7,756,554.90 × 1,978,493.70 - Step 4: Simplify right side
5,170,682.64x = 15,346,295,003,354.13 - Step 5: Solve for x
x = 15,346,295,003,354.13/5,170,682.64 - Step 6: Final answer
x = 2,967,943.71
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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.