Finding the Fourth Proportional to 130,297,838.70, 195,446,758.05 and 99,686,837.10
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Solution
The fourth proportional to 130,297,838.70, 195,446,758.05 and 99,686,837.10 is: 149,530,255.65
Step by Step Solution
- Step 1: Write the proportion equation
130,297,838.70 : 195,446,758.05 = 99,686,837.10 : x - Step 2: Convert to fraction form
130,297,838.70/195,446,758.05 = 99,686,837.10/x - Step 3: Cross multiply
130,297,838.70x = 195,446,758.05 × 99,686,837.10 - Step 4: Simplify right side
130,297,838.70x = 19,483,469,131,453,464 - Step 5: Solve for x
x = 19,483,469,131,453,464/130,297,838.70 - Step 6: Final answer
x = 149,530,255.65
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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.