Finding the Fourth Proportional to 5,276,509.56, 7,271,631.51 and 4,228,740.63
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Solution
The fourth proportional to 5,276,509.56, 7,271,631.51 and 4,228,740.63 is: 5,827,686.52
Step by Step Solution
- Step 1: Write the proportion equation
5,276,509.56 : 7,271,631.51 = 4,228,740.63 : x - Step 2: Convert to fraction form
5,276,509.56/7,271,631.51 = 4,228,740.63/x - Step 3: Cross multiply
5,276,509.56x = 7,271,631.51 × 4,228,740.63 - Step 4: Simplify right side
5,276,509.56x = 30,749,843,612,725.25 - Step 5: Solve for x
x = 30,749,843,612,725.25/5,276,509.56 - Step 6: Final answer
x = 5,827,686.52
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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.