Finding the Fourth Proportional to 115,745,438.12, 159,728,879.59 and 62,822,164.79
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Solution
The fourth proportional to 115,745,438.12, 159,728,879.59 and 62,822,164.79 is: 86,694,682.39
Step by Step Solution
- Step 1: Write the proportion equation
115,745,438.12 : 159,728,879.59 = 62,822,164.79 : x - Step 2: Convert to fraction form
115,745,438.12/159,728,879.59 = 62,822,164.79/x - Step 3: Cross multiply
115,745,438.12x = 159,728,879.59 × 62,822,164.79 - Step 4: Simplify right side
115,745,438.12x = 10,034,513,995,567,314 - Step 5: Solve for x
x = 10,034,513,995,567,314/115,745,438.12 - Step 6: Final answer
x = 86,694,682.39
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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.