Finding the Fourth Proportional to 5,119,378.72, 7,064,700.57 and 2,796,272.68
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Solution
The fourth proportional to 5,119,378.72, 7,064,700.57 and 2,796,272.68 is: 3,858,833.32
Step by Step Solution
- Step 1: Write the proportion equation
5,119,378.72 : 7,064,700.57 = 2,796,272.68 : x - Step 2: Convert to fraction form
5,119,378.72/7,064,700.57 = 2,796,272.68/x - Step 3: Cross multiply
5,119,378.72x = 7,064,700.57 × 2,796,272.68 - Step 4: Simplify right side
5,119,378.72x = 19,754,829,196,271.43 - Step 5: Solve for x
x = 19,754,829,196,271.43/5,119,378.72 - Step 6: Final answer
x = 3,858,833.32
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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.