Finding the Fourth Proportional to 13,251,643.20, 19,877,464.80 and 11,976,184.80
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Solution
The fourth proportional to 13,251,643.20, 19,877,464.80 and 11,976,184.80 is: 17,964,277.20
Step by Step Solution
- Step 1: Write the proportion equation
13,251,643.20 : 19,877,464.80 = 11,976,184.80 : x - Step 2: Convert to fraction form
13,251,643.20/19,877,464.80 = 11,976,184.80/x - Step 3: Cross multiply
13,251,643.20x = 19,877,464.80 × 11,976,184.80 - Step 4: Simplify right side
13,251,643.20x = 238,056,191,800,295.06 - Step 5: Solve for x
x = 238,056,191,800,295.06/13,251,643.20 - Step 6: Final answer
x = 17,964,277.20
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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.