Finding the Fourth Proportional to 1,412,246,403.31, 1,948,917,884.84 and 777,239,984.23
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Solution
The fourth proportional to 1,412,246,403.31, 1,948,917,884.84 and 777,239,984.23 is: 1,072,601,001.16
Step by Step Solution
- Step 1: Write the proportion equation
1,412,246,403.31 : 1,948,917,884.84 = 777,239,984.23 : x - Step 2: Convert to fraction form
1,412,246,403.31/1,948,917,884.84 = 777,239,984.23/x - Step 3: Cross multiply
1,412,246,403.31x = 1,948,917,884.84 × 777,239,984.23 - Step 4: Simplify right side
1,412,246,403.31x = 1,514,776,906,074,720,512 - Step 5: Solve for x
x = 1,514,776,906,074,720,512/1,412,246,403.31 - Step 6: Final answer
x = 1,072,601,001.16
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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.