Finding the Fourth Proportional to 407,236,615.68, 611,042,789.40 and 185,975,784.84
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Solution
The fourth proportional to 407,236,615.68, 611,042,789.40 and 185,975,784.84 is: 279,049,471.37
Step by Step Solution
- Step 1: Write the proportion equation
407,236,615.68 : 611,042,789.40 = 185,975,784.84 : x - Step 2: Convert to fraction form
407,236,615.68/611,042,789.40 = 185,975,784.84/x - Step 3: Cross multiply
407,236,615.68x = 611,042,789.40 × 185,975,784.84 - Step 4: Simplify right side
407,236,615.68x = 113,639,162,329,487,824 - Step 5: Solve for x
x = 113,639,162,329,487,824/407,236,615.68 - Step 6: Final answer
x = 279,049,471.37
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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.