Finding the Fourth Proportional to 437,212,536.91, 655,933,833.32 and 157,121,747.73
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Solution
The fourth proportional to 437,212,536.91, 655,933,833.32 and 157,121,747.73 is: 235,723,959.37
Step by Step Solution
- Step 1: Write the proportion equation
437,212,536.91 : 655,933,833.32 = 157,121,747.73 : x - Step 2: Convert to fraction form
437,212,536.91/655,933,833.32 = 157,121,747.73/x - Step 3: Cross multiply
437,212,536.91x = 655,933,833.32 × 157,121,747.73 - Step 4: Simplify right side
437,212,536.91x = 103,061,470,288,151,056 - Step 5: Solve for x
x = 103,061,470,288,151,056/437,212,536.91 - Step 6: Final answer
x = 235,723,959.37
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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.