Finding the Fourth Proportional to 7,122,239.40, 9,827,396.24 and 3,982,559.73
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Solution
The fourth proportional to 7,122,239.40, 9,827,396.24 and 3,982,559.73 is: 5,495,208.78
Step by Step Solution
- Step 1: Write the proportion equation
7,122,239.40 : 9,827,396.24 = 3,982,559.73 : x - Step 2: Convert to fraction form
7,122,239.40/9,827,396.24 = 3,982,559.73/x - Step 3: Cross multiply
7,122,239.40x = 9,827,396.24 × 3,982,559.73 - Step 4: Simplify right side
7,122,239.40x = 39,138,192,516,177.41 - Step 5: Solve for x
x = 39,138,192,516,177.41/7,122,239.40 - Step 6: Final answer
x = 5,495,208.78
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1.5x scale
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.