Finding the Fourth Proportional to 122,805,660.72, 169,486,674.15 and 69,895,233.47
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Solution
The fourth proportional to 122,805,660.72, 169,486,674.15 and 69,895,233.47 is: 96,463,881.14
Step by Step Solution
- Step 1: Write the proportion equation
122,805,660.72 : 169,486,674.15 = 69,895,233.47 : x - Step 2: Convert to fraction form
122,805,660.72/169,486,674.15 = 69,895,233.47/x - Step 3: Cross multiply
122,805,660.72x = 169,486,674.15 × 69,895,233.47 - Step 4: Simplify right side
122,805,660.72x = 11,846,310,659,304,820 - Step 5: Solve for x
x = 11,846,310,659,304,820/122,805,660.72 - Step 6: Final answer
x = 96,463,881.14
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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.