Finding the Fourth Proportional to 40,175,447.97, 55,439,763.88 and 21,840,573.09
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Solution
The fourth proportional to 40,175,447.97, 55,439,763.88 and 21,840,573.09 is: 30,138,710.99
Step by Step Solution
- Step 1: Write the proportion equation
40,175,447.97 : 55,439,763.88 = 21,840,573.09 : x - Step 2: Convert to fraction form
40,175,447.97/55,439,763.88 = 21,840,573.09/x - Step 3: Cross multiply
40,175,447.97x = 55,439,763.88 × 21,840,573.09 - Step 4: Simplify right side
40,175,447.97x = 1,210,836,215,113,482 - Step 5: Solve for x
x = 1,210,836,215,113,482/40,175,447.97 - Step 6: Final answer
x = 30,138,710.99
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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.