Finding the Fourth Proportional to 5,239,612.72, 7,230,664.44 and 2,916,455.14
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Solution
The fourth proportional to 5,239,612.72, 7,230,664.44 and 2,916,455.14 is: 4,024,707.47
Step by Step Solution
- Step 1: Write the proportion equation
5,239,612.72 : 7,230,664.44 = 2,916,455.14 : x - Step 2: Convert to fraction form
5,239,612.72/7,230,664.44 = 2,916,455.14/x - Step 3: Cross multiply
5,239,612.72x = 7,230,664.44 × 2,916,455.14 - Step 4: Simplify right side
5,239,612.72x = 21,087,908,471,653.22 - Step 5: Solve for x
x = 21,087,908,471,653.22/5,239,612.72 - Step 6: Final answer
x = 4,024,707.47
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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.