Finding the Fourth Proportional to 692,212,432.23, 955,253,203.09 and 378,946,646.21
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Solution
The fourth proportional to 692,212,432.23, 955,253,203.09 and 378,946,646.21 is: 522,946,397.29
Step by Step Solution
- Step 1: Write the proportion equation
692,212,432.23 : 955,253,203.09 = 378,946,646.21 : x - Step 2: Convert to fraction form
692,212,432.23/955,253,203.09 = 378,946,646.21/x - Step 3: Cross multiply
692,212,432.23x = 955,253,203.09 × 378,946,646.21 - Step 4: Simplify right side
692,212,432.23x = 361,989,997,593,756,224 - Step 5: Solve for x
x = 361,989,997,593,756,224/692,212,432.23 - Step 6: Final answer
x = 522,946,397.29
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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.