Finding the Fourth Proportional to 21,344,220.74, 29,455,018.41 and 11,554,657.67
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Solution
The fourth proportional to 21,344,220.74, 29,455,018.41 and 11,554,657.67 is: 15,945,424.22
Step by Step Solution
- Step 1: Write the proportion equation
21,344,220.74 : 29,455,018.41 = 11,554,657.67 : x - Step 2: Convert to fraction form
21,344,220.74/29,455,018.41 = 11,554,657.67/x - Step 3: Cross multiply
21,344,220.74x = 29,455,018.41 × 11,554,657.67 - Step 4: Simplify right side
21,344,220.74x = 340,342,654,391,097.69 - Step 5: Solve for x
x = 340,342,654,391,097.69/21,344,220.74 - Step 6: Final answer
x = 15,945,424.22
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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.