Finding the Fourth Proportional to 13,251,645.70, 19,877,468.55 and 11,976,187.30
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Solution
The fourth proportional to 13,251,645.70, 19,877,468.55 and 11,976,187.30 is: 17,964,280.95
Step by Step Solution
- Step 1: Write the proportion equation
13,251,645.70 : 19,877,468.55 = 11,976,187.30 : x - Step 2: Convert to fraction form
13,251,645.70/19,877,468.55 = 11,976,187.30/x - Step 3: Cross multiply
13,251,645.70x = 19,877,468.55 × 11,976,187.30 - Step 4: Simplify right side
13,251,645.70x = 238,056,286,404,659.44 - Step 5: Solve for x
x = 238,056,286,404,659.44/13,251,645.70 - Step 6: Final answer
x = 17,964,280.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.