Finding the Fourth Proportional to 513,304,377.62, 708,360,229.92 and 278,354,975.82
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Solution
The fourth proportional to 513,304,377.62, 708,360,229.92 and 278,354,975.82 is: 384,129,969.02
Step by Step Solution
- Step 1: Write the proportion equation
513,304,377.62 : 708,360,229.92 = 278,354,975.82 : x - Step 2: Convert to fraction form
513,304,377.62/708,360,229.92 = 278,354,975.82/x - Step 3: Cross multiply
513,304,377.62x = 708,360,229.92 × 278,354,975.82 - Step 4: Simplify right side
513,304,377.62x = 197,175,594,669,618,752 - Step 5: Solve for x
x = 197,175,594,669,618,752/513,304,377.62 - Step 6: Final answer
x = 384,129,969.02
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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.