Finding the Fourth Proportional to 21,031,163.12, 31,551,308.16 and 6,458,132.32
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Solution
The fourth proportional to 21,031,163.12, 31,551,308.16 and 6,458,132.32 is: 9,688,599.81
Step by Step Solution
- Step 1: Write the proportion equation
21,031,163.12 : 31,551,308.16 = 6,458,132.32 : x - Step 2: Convert to fraction form
21,031,163.12/31,551,308.16 = 6,458,132.32/x - Step 3: Cross multiply
21,031,163.12x = 31,551,308.16 × 6,458,132.32 - Step 4: Simplify right side
21,031,163.12x = 203,762,522,966,375.75 - Step 5: Solve for x
x = 203,762,522,966,375.75/21,031,163.12 - Step 6: Final answer
x = 9,688,599.81
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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.