Finding the Fourth Proportional to 12,637,820.48, 17,440,277.28 and 7,743,051.84
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Solution
The fourth proportional to 12,637,820.48, 17,440,277.28 and 7,743,051.84 is: 10,685,463.63
Step by Step Solution
- Step 1: Write the proportion equation
12,637,820.48 : 17,440,277.28 = 7,743,051.84 : x - Step 2: Convert to fraction form
12,637,820.48/17,440,277.28 = 7,743,051.84/x - Step 3: Cross multiply
12,637,820.48x = 17,440,277.28 × 7,743,051.84 - Step 4: Simplify right side
12,637,820.48x = 135,040,971,083,014.20 - Step 5: Solve for x
x = 135,040,971,083,014.20/12,637,820.48 - Step 6: Final answer
x = 10,685,463.63
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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.