Finding the Fourth Proportional to 21,344,521.44, 29,455,405.74 and 11,554,962.96
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Solution
The fourth proportional to 21,344,521.44, 29,455,405.74 and 11,554,962.96 is: 15,945,830.56
Step by Step Solution
- Step 1: Write the proportion equation
21,344,521.44 : 29,455,405.74 = 11,554,962.96 : x - Step 2: Convert to fraction form
21,344,521.44/29,455,405.74 = 11,554,962.96/x - Step 3: Cross multiply
21,344,521.44x = 29,455,405.74 × 11,554,962.96 - Step 4: Simplify right side
21,344,521.44x = 340,356,122,297,471.38 - Step 5: Solve for x
x = 340,356,122,297,471.38/21,344,521.44 - Step 6: Final answer
x = 15,945,830.56
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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.