Finding the Fourth Proportional to 7,122,973.68, 9,829,886.22 and 4,067,472.24
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Solution
The fourth proportional to 7,122,973.68, 9,829,886.22 and 4,067,472.24 is: 5,613,215.93
Step by Step Solution
- Step 1: Write the proportion equation
7,122,973.68 : 9,829,886.22 = 4,067,472.24 : x - Step 2: Convert to fraction form
7,122,973.68/9,829,886.22 = 4,067,472.24/x - Step 3: Cross multiply
7,122,973.68x = 9,829,886.22 × 4,067,472.24 - Step 4: Simplify right side
7,122,973.68x = 39,982,789,322,208.54 - Step 5: Solve for x
x = 39,982,789,322,208.54/7,122,973.68 - Step 6: Final answer
x = 5,613,215.93
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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.