Finding the Fourth Proportional to 19,808,268.12, 27,325,349.40 and 12,936,772.44
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Solution
The fourth proportional to 19,808,268.12, 27,325,349.40 and 12,936,772.44 is: 17,846,175.39
Step by Step Solution
- Step 1: Write the proportion equation
19,808,268.12 : 27,325,349.40 = 12,936,772.44 : x - Step 2: Convert to fraction form
19,808,268.12/27,325,349.40 = 12,936,772.44/x - Step 3: Cross multiply
19,808,268.12x = 27,325,349.40 × 12,936,772.44 - Step 4: Simplify right side
19,808,268.12x = 353,501,827,031,290.50 - Step 5: Solve for x
x = 353,501,827,031,290.50/19,808,268.12 - Step 6: Final answer
x = 17,846,175.39
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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.