Finding the Fourth Proportional to 5,309,148,926.98, 7,326,640,310.97 and 2,897,853,192.19
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Solution
The fourth proportional to 5,309,148,926.98, 7,326,640,310.97 and 2,897,853,192.19 is: 3,999,045,478.89
Step by Step Solution
- Step 1: Write the proportion equation
5,309,148,926.98 : 7,326,640,310.97 = 2,897,853,192.19 : x - Step 2: Convert to fraction form
5,309,148,926.98/7,326,640,310.97 = 2,897,853,192.19/x - Step 3: Cross multiply
5,309,148,926.98x = 7,326,640,310.97 × 2,897,853,192.19 - Step 4: Simplify right side
5,309,148,926.98x = 21,231,528,013,172,350,976 - Step 5: Solve for x
x = 21,231,528,013,172,350,976/5,309,148,926.98 - Step 6: Final answer
x = 3,999,045,478.89
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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.