Finding the Fourth Proportional to 11,477,956.80, 15,841,302.42 and 8,720,106.06
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Solution
The fourth proportional to 11,477,956.80, 15,841,302.42 and 8,720,106.06 is: 12,035,054.64
Step by Step Solution
- Step 1: Write the proportion equation
11,477,956.80 : 15,841,302.42 = 8,720,106.06 : x - Step 2: Convert to fraction form
11,477,956.80/15,841,302.42 = 8,720,106.06/x - Step 3: Cross multiply
11,477,956.80x = 15,841,302.42 × 8,720,106.06 - Step 4: Simplify right side
11,477,956.80x = 138,137,837,230,934.67 - Step 5: Solve for x
x = 138,137,837,230,934.67/11,477,956.80 - Step 6: Final answer
x = 12,035,054.64
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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.