Finding the Fourth Proportional to 1,237,108,609.80, 1,707,245,388.36 and 754,328,857.14
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Solution
The fourth proportional to 1,237,108,609.80, 1,707,245,388.36 and 754,328,857.14 is: 1,040,995,473.20
Step by Step Solution
- Step 1: Write the proportion equation
1,237,108,609.80 : 1,707,245,388.36 = 754,328,857.14 : x - Step 2: Convert to fraction form
1,237,108,609.80/1,707,245,388.36 = 754,328,857.14/x - Step 3: Cross multiply
1,237,108,609.80x = 1,707,245,388.36 × 754,328,857.14 - Step 4: Simplify right side
1,237,108,609.80x = 1,287,824,462,659,134,208 - Step 5: Solve for x
x = 1,287,824,462,659,134,208/1,237,108,609.80 - Step 6: Final answer
x = 1,040,995,473.20
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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.