Finding the Fourth Proportional to 1,242,950,510,765.70, 1,715,253,450,318.20 and 694,249,823,252.97
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Solution
The fourth proportional to 1,242,950,510,765.70, 1,715,253,450,318.20 and 694,249,823,252.97 is: 958,054,560,019.35
Step by Step Solution
- Step 1: Write the proportion equation
1,242,950,510,765.70 : 1,715,253,450,318.20 = 694,249,823,252.97 : x - Step 2: Convert to fraction form
1,242,950,510,765.70/1,715,253,450,318.20 = 694,249,823,252.97/x - Step 3: Cross multiply
1,242,950,510,765.70x = 1,715,253,450,318.20 × 694,249,823,252.97 - Step 4: Simplify right side
1,242,950,510,765.70x = 1,190,814,404,717,457,291,870,208 - Step 5: Solve for x
x = 1,190,814,404,717,457,291,870,208/1,242,950,510,765.70 - Step 6: Final answer
x = 958,054,560,019.35
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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.