Finding the Fourth Proportional to 7,217,227.58, 9,959,786.63 and 3,953,972.07
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Solution
The fourth proportional to 7,217,227.58, 9,959,786.63 and 3,953,972.07 is: 5,456,488.35
Step by Step Solution
- Step 1: Write the proportion equation
7,217,227.58 : 9,959,786.63 = 3,953,972.07 : x - Step 2: Convert to fraction form
7,217,227.58/9,959,786.63 = 3,953,972.07/x - Step 3: Cross multiply
7,217,227.58x = 9,959,786.63 × 3,953,972.07 - Step 4: Simplify right side
7,217,227.58x = 39,380,718,153,236.96 - Step 5: Solve for x
x = 39,380,718,153,236.96/7,217,227.58 - Step 6: Final answer
x = 5,456,488.35
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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.