Finding the Fourth Proportional to 12,771,120.74, 17,624,557.84 and 7,264,354.38
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Solution
The fourth proportional to 12,771,120.74, 17,624,557.84 and 7,264,354.38 is: 10,025,042.95
Step by Step Solution
- Step 1: Write the proportion equation
12,771,120.74 : 17,624,557.84 = 7,264,354.38 : x - Step 2: Convert to fraction form
12,771,120.74/17,624,557.84 = 7,264,354.38/x - Step 3: Cross multiply
12,771,120.74x = 17,624,557.84 × 7,264,354.38 - Step 4: Simplify right side
12,771,120.74x = 128,031,033,940,567.34 - Step 5: Solve for x
x = 128,031,033,940,567.34/12,771,120.74 - Step 6: Final answer
x = 10,025,042.95
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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.