Finding the Fourth Proportional to 13,176,271.20, 18,182,409.84 and 7,374,073.44
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Solution
The fourth proportional to 13,176,271.20, 18,182,409.84 and 7,374,073.44 is: 10,175,748.77
Step by Step Solution
- Step 1: Write the proportion equation
13,176,271.20 : 18,182,409.84 = 7,374,073.44 : x - Step 2: Convert to fraction form
13,176,271.20/18,182,409.84 = 7,374,073.44/x - Step 3: Cross multiply
13,176,271.20x = 18,182,409.84 × 7,374,073.44 - Step 4: Simplify right side
13,176,271.20x = 134,078,425,476,338.66 - Step 5: Solve for x
x = 134,078,425,476,338.66/13,176,271.20 - Step 6: Final answer
x = 10,175,748.77
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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.