Finding the Fourth Proportional to 853,092,769.41, 1,177,272,375.17 and 476,755,638.28
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Solution
The fourth proportional to 853,092,769.41, 1,177,272,375.17 and 476,755,638.28 is: 657,925,213.74
Step by Step Solution
- Step 1: Write the proportion equation
853,092,769.41 : 1,177,272,375.17 = 476,755,638.28 : x - Step 2: Convert to fraction form
853,092,769.41/1,177,272,375.17 = 476,755,638.28/x - Step 3: Cross multiply
853,092,769.41x = 1,177,272,375.17 × 476,755,638.28 - Step 4: Simplify right side
853,092,769.41x = 561,271,242,653,584,960 - Step 5: Solve for x
x = 561,271,242,653,584,960/853,092,769.41 - Step 6: Final answer
x = 657,925,213.74
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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.