Finding the Fourth Proportional to 791,954,151.98, 1,187,976,624.92 and 209,673,266.97
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Solution
The fourth proportional to 791,954,151.98, 1,187,976,624.92 and 209,673,266.97 is: 314,521,919.49
Step by Step Solution
- Step 1: Write the proportion equation
791,954,151.98 : 1,187,976,624.92 = 209,673,266.97 : x - Step 2: Convert to fraction form
791,954,151.98/1,187,976,624.92 = 209,673,266.97/x - Step 3: Cross multiply
791,954,151.98x = 1,187,976,624.92 × 209,673,266.97 - Step 4: Simplify right side
791,954,151.98x = 249,086,940,030,970,720 - Step 5: Solve for x
x = 249,086,940,030,970,720/791,954,151.98 - Step 6: Final answer
x = 314,521,919.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.