Finding the Fourth Proportional to 124,919,766.09, 172,394,664.39 and 69,165,187.65
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Solution
The fourth proportional to 124,919,766.09, 172,394,664.39 and 69,165,187.65 is: 95,450,941.72
Step by Step Solution
- Step 1: Write the proportion equation
124,919,766.09 : 172,394,664.39 = 69,165,187.65 : x - Step 2: Convert to fraction form
124,919,766.09/172,394,664.39 = 69,165,187.65/x - Step 3: Cross multiply
124,919,766.09x = 172,394,664.39 × 69,165,187.65 - Step 4: Simplify right side
124,919,766.09x = 11,923,709,312,393,122 - Step 5: Solve for x
x = 11,923,709,312,393,122/124,919,766.09 - Step 6: Final answer
x = 95,450,941.72
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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.