Finding the Fourth Proportional to 5,213,778.84, 7,821,207.72 and 1,427,260.50
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Solution
The fourth proportional to 5,213,778.84, 7,821,207.72 and 1,427,260.50 is: 2,141,038.43
Step by Step Solution
- Step 1: Write the proportion equation
5,213,778.84 : 7,821,207.72 = 1,427,260.50 : x - Step 2: Convert to fraction form
5,213,778.84/7,821,207.72 = 1,427,260.50/x - Step 3: Cross multiply
5,213,778.84x = 7,821,207.72 × 1,427,260.50 - Step 4: Simplify right side
5,213,778.84x = 11,162,900,841,051.06 - Step 5: Solve for x
x = 11,162,900,841,051.06/5,213,778.84 - Step 6: Final answer
x = 2,141,038.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.