Finding the Fourth Proportional to 11,576,564.28, 15,975,695.52 and 6,420,402.36
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Solution
The fourth proportional to 11,576,564.28, 15,975,695.52 and 6,420,402.36 is: 8,860,175.67
Step by Step Solution
- Step 1: Write the proportion equation
11,576,564.28 : 15,975,695.52 = 6,420,402.36 : x - Step 2: Convert to fraction form
11,576,564.28/15,975,695.52 = 6,420,402.36/x - Step 3: Cross multiply
11,576,564.28x = 15,975,695.52 × 6,420,402.36 - Step 4: Simplify right side
11,576,564.28x = 102,570,393,219,249.42 - Step 5: Solve for x
x = 102,570,393,219,249.42/11,576,564.28 - Step 6: Final answer
x = 8,860,175.67
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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.