Finding the Fourth Proportional to 21,225,704.34, 29,282,967.09 and 13,382,637.54
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Solution
The fourth proportional to 21,225,704.34, 29,282,967.09 and 13,382,637.54 is: 18,462,677.53
Step by Step Solution
- Step 1: Write the proportion equation
21,225,704.34 : 29,282,967.09 = 13,382,637.54 : x - Step 2: Convert to fraction form
21,225,704.34/29,282,967.09 = 13,382,637.54/x - Step 3: Cross multiply
21,225,704.34x = 29,282,967.09 × 13,382,637.54 - Step 4: Simplify right side
21,225,704.34x = 391,883,334,661,218.50 - Step 5: Solve for x
x = 391,883,334,661,218.50/21,225,704.34 - Step 6: Final answer
x = 18,462,677.53
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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.