Finding the Fourth Proportional to 125,131,633.74, 187,805,510.29 and 86,820,052.05
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Solution
The fourth proportional to 125,131,633.74, 187,805,510.29 and 86,820,052.05 is: 130,305,053.10
Step by Step Solution
- Step 1: Write the proportion equation
125,131,633.74 : 187,805,510.29 = 86,820,052.05 : x - Step 2: Convert to fraction form
125,131,633.74/187,805,510.29 = 86,820,052.05/x - Step 3: Cross multiply
125,131,633.74x = 187,805,510.29 × 86,820,052.05 - Step 4: Simplify right side
125,131,633.74x = 16,305,284,178,690,022 - Step 5: Solve for x
x = 16,305,284,178,690,022/125,131,633.74 - Step 6: Final answer
x = 130,305,053.10
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.