Finding the Fourth Proportional to 6,615,731.52, 9,133,110.72 and 5,659,138.08
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Solution
The fourth proportional to 6,615,731.52, 9,133,110.72 and 5,659,138.08 is: 7,812,519.98
Step by Step Solution
- Step 1: Write the proportion equation
6,615,731.52 : 9,133,110.72 = 5,659,138.08 : x - Step 2: Convert to fraction form
6,615,731.52/9,133,110.72 = 5,659,138.08/x - Step 3: Cross multiply
6,615,731.52x = 9,133,110.72 × 5,659,138.08 - Step 4: Simplify right side
6,615,731.52x = 51,685,534,664,408.22 - Step 5: Solve for x
x = 51,685,534,664,408.22/6,615,731.52 - Step 6: Final answer
x = 7,812,519.98
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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.