Finding the Fourth Proportional to 15,197,939.46, 20,972,526.58 and 8,322,303.06
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Solution
The fourth proportional to 15,197,939.46, 20,972,526.58 and 8,322,303.06 is: 11,484,433.31
Step by Step Solution
- Step 1: Write the proportion equation
15,197,939.46 : 20,972,526.58 = 8,322,303.06 : x - Step 2: Convert to fraction form
15,197,939.46/20,972,526.58 = 8,322,303.06/x - Step 3: Cross multiply
15,197,939.46x = 20,972,526.58 × 8,322,303.06 - Step 4: Simplify right side
15,197,939.46x = 174,539,722,132,665.31 - Step 5: Solve for x
x = 174,539,722,132,665.31/15,197,939.46 - Step 6: Final answer
x = 11,484,433.31
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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.