Finding the Fourth Proportional to 5,430,927.53, 7,493,846.86 and 3,138,645.53
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Solution
The fourth proportional to 5,430,927.53, 7,493,846.86 and 3,138,645.53 is: 4,330,849.35
Step by Step Solution
- Step 1: Write the proportion equation
5,430,927.53 : 7,493,846.86 = 3,138,645.53 : x - Step 2: Convert to fraction form
5,430,927.53/7,493,846.86 = 3,138,645.53/x - Step 3: Cross multiply
5,430,927.53x = 7,493,846.86 × 3,138,645.53 - Step 4: Simplify right side
5,430,927.53x = 23,520,528,949,643.54 - Step 5: Solve for x
x = 23,520,528,949,643.54/5,430,927.53 - Step 6: Final answer
x = 4,330,849.35
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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.