Finding the Fourth Proportional to 20,130,629.44, 27,781,055.04 and 11,429,611.84
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Solution
The fourth proportional to 20,130,629.44, 27,781,055.04 and 11,429,611.84 is: 15,773,310.84
Step by Step Solution
- Step 1: Write the proportion equation
20,130,629.44 : 27,781,055.04 = 11,429,611.84 : x - Step 2: Convert to fraction form
20,130,629.44/27,781,055.04 = 11,429,611.84/x - Step 3: Cross multiply
20,130,629.44x = 27,781,055.04 × 11,429,611.84 - Step 4: Simplify right side
20,130,629.44x = 317,526,675,612,875.69 - Step 5: Solve for x
x = 317,526,675,612,875.69/20,130,629.44 - Step 6: Final answer
x = 15,773,310.84
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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.