Finding the Fourth Proportional to 1,508,247,486.09, 2,081,348,891.33 and 873,194,755.05
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Solution
The fourth proportional to 1,508,247,486.09, 2,081,348,891.33 and 873,194,755.05 is: 1,204,989,865.45
Step by Step Solution
- Step 1: Write the proportion equation
1,508,247,486.09 : 2,081,348,891.33 = 873,194,755.05 : x - Step 2: Convert to fraction form
1,508,247,486.09/2,081,348,891.33 = 873,194,755.05/x - Step 3: Cross multiply
1,508,247,486.09x = 2,081,348,891.33 × 873,194,755.05 - Step 4: Simplify right side
1,508,247,486.09x = 1,817,422,935,334,122,496 - Step 5: Solve for x
x = 1,817,422,935,334,122,496/1,508,247,486.09 - Step 6: Final answer
x = 1,204,989,865.45
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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.