Finding the Fourth Proportional to 7,201,054.08, 9,939,957.12 and 4,146,485.76
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Solution
The fourth proportional to 7,201,054.08, 9,939,957.12 and 4,146,485.76 is: 5,723,591.32
Step by Step Solution
- Step 1: Write the proportion equation
7,201,054.08 : 9,939,957.12 = 4,146,485.76 : x - Step 2: Convert to fraction form
7,201,054.08/9,939,957.12 = 4,146,485.76/x - Step 3: Cross multiply
7,201,054.08x = 9,939,957.12 × 4,146,485.76 - Step 4: Simplify right side
7,201,054.08x = 41,215,890,653,090.61 - Step 5: Solve for x
x = 41,215,890,653,090.61/7,201,054.08 - Step 6: Final answer
x = 5,723,591.32
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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.