Finding the Fourth Proportional to 19,838,919.12, 27,376,196.88 and 11,135,410.20
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Solution
The fourth proportional to 19,838,919.12, 27,376,196.88 and 11,135,410.20 is: 15,366,017.68
Step by Step Solution
- Step 1: Write the proportion equation
19,838,919.12 : 27,376,196.88 = 11,135,410.20 : x - Step 2: Convert to fraction form
19,838,919.12/27,376,196.88 = 11,135,410.20/x - Step 3: Cross multiply
19,838,919.12x = 27,376,196.88 × 11,135,410.20 - Step 4: Simplify right side
19,838,919.12x = 304,845,181,974,760.12 - Step 5: Solve for x
x = 304,845,181,974,760.12/19,838,919.12 - Step 6: Final answer
x = 15,366,017.68
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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.