Finding the Fourth Proportional to 18,346,839.12, 27,460,376.16 and 13,487,859
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Solution
The fourth proportional to 18,346,839.12, 27,460,376.16 and 13,487,859 is: 20,187,765.28
Step by Step Solution
- Step 1: Write the proportion equation
18,346,839.12 : 27,460,376.16 = 13,487,859 : x - Step 2: Convert to fraction form
18,346,839.12/27,460,376.16 = 13,487,859/x - Step 3: Cross multiply
18,346,839.12x = 27,460,376.16 × 13,487,859 - Step 4: Simplify right side
18,346,839.12x = 370,381,681,733,041.44 - Step 5: Solve for x
x = 370,381,681,733,041.44/18,346,839.12 - Step 6: Final answer
x = 20,187,765.28
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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.