Finding the Fourth Proportional to 19,958,620.12, 27,542,840.82 and 11,137,977.08
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Solution
The fourth proportional to 19,958,620.12, 27,542,840.82 and 11,137,977.08 is: 15,370,377.71
Step by Step Solution
- Step 1: Write the proportion equation
19,958,620.12 : 27,542,840.82 = 11,137,977.08 : x - Step 2: Convert to fraction form
19,958,620.12/27,542,840.82 = 11,137,977.08/x - Step 3: Cross multiply
19,958,620.12x = 27,542,840.82 × 11,137,977.08 - Step 4: Simplify right side
19,958,620.12x = 306,771,529,771,248.44 - Step 5: Solve for x
x = 306,771,529,771,248.44/19,958,620.12 - Step 6: Final answer
x = 15,370,377.71
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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.