Finding the Fourth Proportional to 12,252,748.61, 18,381,119.36 and 3,617,721.93
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Solution
The fourth proportional to 12,252,748.61, 18,381,119.36 and 3,617,721.93 is: 5,427,172.37
Step by Step Solution
- Step 1: Write the proportion equation
12,252,748.61 : 18,381,119.36 = 3,617,721.93 : x - Step 2: Convert to fraction form
12,252,748.61/18,381,119.36 = 3,617,721.93/x - Step 3: Cross multiply
12,252,748.61x = 18,381,119.36 × 3,617,721.93 - Step 4: Simplify right side
12,252,748.61x = 66,497,778,677,809.83 - Step 5: Solve for x
x = 66,497,778,677,809.83/12,252,748.61 - Step 6: Final answer
x = 5,427,172.37
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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.