Finding the Fourth Proportional to 9,320,107.11, 12,855,122.40 and 6,221,067.96
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Solution
The fourth proportional to 9,320,107.11, 12,855,122.40 and 6,221,067.96 is: 8,580,651.40
Step by Step Solution
- Step 1: Write the proportion equation
9,320,107.11 : 12,855,122.40 = 6,221,067.96 : x - Step 2: Convert to fraction form
9,320,107.11/12,855,122.40 = 6,221,067.96/x - Step 3: Cross multiply
9,320,107.11x = 12,855,122.40 × 6,221,067.96 - Step 4: Simplify right side
9,320,107.11x = 79,972,590,084,518.31 - Step 5: Solve for x
x = 79,972,590,084,518.31/9,320,107.11 - Step 6: Final answer
x = 8,580,651.40
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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.