Finding the Fourth Proportional to 5,905,407.74, 8,149,462.79 and 3,189,153.74
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Solution
The fourth proportional to 5,905,407.74, 8,149,462.79 and 3,189,153.74 is: 4,401,032.21
Step by Step Solution
- Step 1: Write the proportion equation
5,905,407.74 : 8,149,462.79 = 3,189,153.74 : x - Step 2: Convert to fraction form
5,905,407.74/8,149,462.79 = 3,189,153.74/x - Step 3: Cross multiply
5,905,407.74x = 8,149,462.79 × 3,189,153.74 - Step 4: Simplify right side
5,905,407.74x = 25,989,889,679,026.25 - Step 5: Solve for x
x = 25,989,889,679,026.25/5,905,407.74 - Step 6: Final answer
x = 4,401,032.21
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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.