Finding the Fourth Proportional to 144,594,914.68, 199,533,797.58 and 81,861,257.08
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Solution
The fourth proportional to 144,594,914.68, 199,533,797.58 and 81,861,257.08 is: 112,964,467.22
Step by Step Solution
- Step 1: Write the proportion equation
144,594,914.68 : 199,533,797.58 = 81,861,257.08 : x - Step 2: Convert to fraction form
144,594,914.68/199,533,797.58 = 81,861,257.08/x - Step 3: Cross multiply
144,594,914.68x = 199,533,797.58 × 81,861,257.08 - Step 4: Simplify right side
144,594,914.68x = 16,334,087,499,845,062 - Step 5: Solve for x
x = 16,334,087,499,845,062/144,594,914.68 - Step 6: Final answer
x = 112,964,467.22
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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.