Finding the Fourth Proportional to 620,573,425.26, 856,397,926.35 and 342,124,913.31
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Solution
The fourth proportional to 620,573,425.26, 856,397,926.35 and 342,124,913.31 is: 472,136,018.70
Step by Step Solution
- Step 1: Write the proportion equation
620,573,425.26 : 856,397,926.35 = 342,124,913.31 : x - Step 2: Convert to fraction form
620,573,425.26/856,397,926.35 = 342,124,913.31/x - Step 3: Cross multiply
620,573,425.26x = 856,397,926.35 × 342,124,913.31 - Step 4: Simplify right side
620,573,425.26x = 292,995,066,311,357,504 - Step 5: Solve for x
x = 292,995,066,311,357,504/620,573,425.26 - Step 6: Final answer
x = 472,136,018.70
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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.