Finding the Fourth Proportional to 21,011,883.84, 31,518,791.69 and 6,437,759.58
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Solution
The fourth proportional to 21,011,883.84, 31,518,791.69 and 6,437,759.58 is: 9,656,935.32
Step by Step Solution
- Step 1: Write the proportion equation
21,011,883.84 : 31,518,791.69 = 6,437,759.58 : x - Step 2: Convert to fraction form
21,011,883.84/31,518,791.69 = 6,437,759.58/x - Step 3: Cross multiply
21,011,883.84x = 31,518,791.69 × 6,437,759.58 - Step 4: Simplify right side
21,011,883.84x = 202,910,403,120,133.09 - Step 5: Solve for x
x = 202,910,403,120,133.09/21,011,883.84 - Step 6: Final answer
x = 9,656,935.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.