Finding the Fourth Proportional to 10,977,516.78, 15,149,192.04 and 6,394,133.40
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Solution
The fourth proportional to 10,977,516.78, 15,149,192.04 and 6,394,133.40 is: 8,824,031.59
Step by Step Solution
- Step 1: Write the proportion equation
10,977,516.78 : 15,149,192.04 = 6,394,133.40 : x - Step 2: Convert to fraction form
10,977,516.78/15,149,192.04 = 6,394,133.40/x - Step 3: Cross multiply
10,977,516.78x = 15,149,192.04 × 6,394,133.40 - Step 4: Simplify right side
10,977,516.78x = 96,865,954,805,978.14 - Step 5: Solve for x
x = 96,865,954,805,978.14/10,977,516.78 - Step 6: Final answer
x = 8,824,031.59
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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.