Finding the Fourth Proportional to 19,158,843.80, 26,427,396.62 and 13,654,000.68
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Solution
The fourth proportional to 19,158,843.80, 26,427,396.62 and 13,654,000.68 is: 18,834,105.81
Step by Step Solution
- Step 1: Write the proportion equation
19,158,843.80 : 26,427,396.62 = 13,654,000.68 : x - Step 2: Convert to fraction form
19,158,843.80/26,427,396.62 = 13,654,000.68/x - Step 3: Cross multiply
19,158,843.80x = 26,427,396.62 × 13,654,000.68 - Step 4: Simplify right side
19,158,843.80x = 360,839,691,420,109.69 - Step 5: Solve for x
x = 360,839,691,420,109.69/19,158,843.80 - Step 6: Final answer
x = 18,834,105.81
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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.