Finding the Fourth Proportional to 5,127,881.80, 7,078,655.77 and 3,195,097.31
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Solution
The fourth proportional to 5,127,881.80, 7,078,655.77 and 3,195,097.31 is: 4,410,591.91
Step by Step Solution
- Step 1: Write the proportion equation
5,127,881.80 : 7,078,655.77 = 3,195,097.31 : x - Step 2: Convert to fraction form
5,127,881.80/7,078,655.77 = 3,195,097.31/x - Step 3: Cross multiply
5,127,881.80x = 7,078,655.77 × 3,195,097.31 - Step 4: Simplify right side
5,127,881.80x = 22,616,993,973,749.70 - Step 5: Solve for x
x = 22,616,993,973,749.70/5,127,881.80 - Step 6: Final answer
x = 4,410,591.91
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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.