Finding the Fourth Proportional to 317,215,943.67, 437,759,261.97 and 177,977,614.35
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Solution
The fourth proportional to 317,215,943.67, 437,759,261.97 and 177,977,614.35 is: 245,609,814.58
Step by Step Solution
- Step 1: Write the proportion equation
317,215,943.67 : 437,759,261.97 = 177,977,614.35 : x - Step 2: Convert to fraction form
317,215,943.67/437,759,261.97 = 177,977,614.35/x - Step 3: Cross multiply
317,215,943.67x = 437,759,261.97 × 177,977,614.35 - Step 4: Simplify right side
317,215,943.67x = 77,911,349,105,037,280 - Step 5: Solve for x
x = 77,911,349,105,037,280/317,215,943.67 - Step 6: Final answer
x = 245,609,814.58
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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.