Finding the Fourth Proportional to 216,937,479.97, 299,392,185.86 and 122,868,361.09
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Solution
The fourth proportional to 216,937,479.97, 299,392,185.86 and 122,868,361.09 is: 169,568,795.60
Step by Step Solution
- Step 1: Write the proportion equation
216,937,479.97 : 299,392,185.86 = 122,868,361.09 : x - Step 2: Convert to fraction form
216,937,479.97/299,392,185.86 = 122,868,361.09/x - Step 3: Cross multiply
216,937,479.97x = 299,392,185.86 × 122,868,361.09 - Step 4: Simplify right side
216,937,479.97x = 36,785,827,199,156,536 - Step 5: Solve for x
x = 36,785,827,199,156,536/216,937,479.97 - Step 6: Final answer
x = 169,568,795.60
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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.