Finding the Fourth Proportional to 7,612,440.74, 11,420,768.73 and 3,515,012.30
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Solution
The fourth proportional to 7,612,440.74, 11,420,768.73 and 3,515,012.30 is: 5,273,491.63
Step by Step Solution
- Step 1: Write the proportion equation
7,612,440.74 : 11,420,768.73 = 3,515,012.30 : x - Step 2: Convert to fraction form
7,612,440.74/11,420,768.73 = 3,515,012.30/x - Step 3: Cross multiply
7,612,440.74x = 11,420,768.73 × 3,515,012.30 - Step 4: Simplify right side
7,612,440.74x = 40,144,142,561,405.38 - Step 5: Solve for x
x = 40,144,142,561,405.38/7,612,440.74 - Step 6: Final answer
x = 5,273,491.63
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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.