Finding the Fourth Proportional to 186,848,387.64, 257,852,939.04 and 103,214,785.68
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Solution
The fourth proportional to 186,848,387.64, 257,852,939.04 and 103,214,785.68 is: 142,437,599.68
Step by Step Solution
- Step 1: Write the proportion equation
186,848,387.64 : 257,852,939.04 = 103,214,785.68 : x - Step 2: Convert to fraction form
186,848,387.64/257,852,939.04 = 103,214,785.68/x - Step 3: Cross multiply
186,848,387.64x = 257,852,939.04 × 103,214,785.68 - Step 4: Simplify right side
186,848,387.64x = 26,614,235,839,971,704 - Step 5: Solve for x
x = 26,614,235,839,971,704/186,848,387.64 - Step 6: Final answer
x = 142,437,599.68
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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.