Finding the Fourth Proportional to 5,337,238.55, 7,365,400.62 and 2,889,878.63
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Solution
The fourth proportional to 5,337,238.55, 7,365,400.62 and 2,889,878.63 is: 3,988,038.69
Step by Step Solution
- Step 1: Write the proportion equation
5,337,238.55 : 7,365,400.62 = 2,889,878.63 : x - Step 2: Convert to fraction form
5,337,238.55/7,365,400.62 = 2,889,878.63/x - Step 3: Cross multiply
5,337,238.55x = 7,365,400.62 × 2,889,878.63 - Step 4: Simplify right side
5,337,238.55x = 21,285,113,853,126.75 - Step 5: Solve for x
x = 21,285,113,853,126.75/5,337,238.55 - Step 6: Final answer
x = 3,988,038.69
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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.