Finding the Fourth Proportional to 692,212,434.24, 955,253,205.84 and 378,946,648.20
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Solution
The fourth proportional to 692,212,434.24, 955,253,205.84 and 378,946,648.20 is: 522,946,400.02
Step by Step Solution
- Step 1: Write the proportion equation
692,212,434.24 : 955,253,205.84 = 378,946,648.20 : x - Step 2: Convert to fraction form
692,212,434.24/955,253,205.84 = 378,946,648.20/x - Step 3: Cross multiply
692,212,434.24x = 955,253,205.84 × 378,946,648.20 - Step 4: Simplify right side
692,212,434.24x = 361,990,000,535,372,672 - Step 5: Solve for x
x = 361,990,000,535,372,672/692,212,434.24 - Step 6: Final answer
x = 522,946,400.02
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1.5x scale
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.