Finding the Fourth Proportional to 491,701,536.66, 678,539,924.55 and 268,678,318.80
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Solution
The fourth proportional to 491,701,536.66, 678,539,924.55 and 268,678,318.80 is: 370,771,601.42
Step by Step Solution
- Step 1: Write the proportion equation
491,701,536.66 : 678,539,924.55 = 268,678,318.80 : x - Step 2: Convert to fraction form
491,701,536.66/678,539,924.55 = 268,678,318.80/x - Step 3: Cross multiply
491,701,536.66x = 678,539,924.55 × 268,678,318.80 - Step 4: Simplify right side
491,701,536.66x = 182,308,966,166,772,832 - Step 5: Solve for x
x = 182,308,966,166,772,832/491,701,536.66 - Step 6: Final answer
x = 370,771,601.42
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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.