Finding the Fourth Proportional to 125,005,889.36, 172,491,767.99 and 72,084,551.65
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Solution
The fourth proportional to 125,005,889.36, 172,491,767.99 and 72,084,551.65 is: 99,467,247.68
Step by Step Solution
- Step 1: Write the proportion equation
125,005,889.36 : 172,491,767.99 = 72,084,551.65 : x - Step 2: Convert to fraction form
125,005,889.36/172,491,767.99 = 72,084,551.65/x - Step 3: Cross multiply
125,005,889.36x = 172,491,767.99 × 72,084,551.65 - Step 4: Simplify right side
125,005,889.36x = 12,433,991,758,874,974 - Step 5: Solve for x
x = 12,433,991,758,874,974/125,005,889.36 - Step 6: Final answer
x = 99,467,247.68
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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.