Finding the Fourth Proportional to 3,785,103,495.68, 5,223,442,517.76 and 2,114,352,615.68
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Solution
The fourth proportional to 3,785,103,495.68, 5,223,442,517.76 and 2,114,352,615.68 is: 2,917,806,438.55
Step by Step Solution
- Step 1: Write the proportion equation
3,785,103,495.68 : 5,223,442,517.76 = 2,114,352,615.68 : x - Step 2: Convert to fraction form
3,785,103,495.68/5,223,442,517.76 = 2,114,352,615.68/x - Step 3: Cross multiply
3,785,103,495.68x = 5,223,442,517.76 × 2,114,352,615.68 - Step 4: Simplify right side
3,785,103,495.68x = 11,044,199,350,279,981,056 - Step 5: Solve for x
x = 11,044,199,350,279,981,056/3,785,103,495.68 - Step 6: Final answer
x = 2,917,806,438.55
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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.