Finding the Fourth Proportional to 1,541,765,418.62, 2,127,638,974.76 and 836,917,877.52
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Solution
The fourth proportional to 1,541,765,418.62, 2,127,638,974.76 and 836,917,877.52 is: 1,154,948,135.03
Step by Step Solution
- Step 1: Write the proportion equation
1,541,765,418.62 : 2,127,638,974.76 = 836,917,877.52 : x - Step 2: Convert to fraction form
1,541,765,418.62/2,127,638,974.76 = 836,917,877.52/x - Step 3: Cross multiply
1,541,765,418.62x = 2,127,638,974.76 × 836,917,877.52 - Step 4: Simplify right side
1,541,765,418.62x = 1,780,659,094,884,967,936 - Step 5: Solve for x
x = 1,780,659,094,884,967,936/1,541,765,418.62 - Step 6: Final answer
x = 1,154,948,135.03
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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.