Finding the Fourth Proportional to 21,306,719.08, 31,963,261.02 and 7,842,523.24
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Solution
The fourth proportional to 21,306,719.08, 31,963,261.02 and 7,842,523.24 is: 11,764,956.23
Step by Step Solution
- Step 1: Write the proportion equation
21,306,719.08 : 31,963,261.02 = 7,842,523.24 : x - Step 2: Convert to fraction form
21,306,719.08/31,963,261.02 = 7,842,523.24/x - Step 3: Cross multiply
21,306,719.08x = 31,963,261.02 × 7,842,523.24 - Step 4: Simplify right side
21,306,719.08x = 250,672,617,375,536.09 - Step 5: Solve for x
x = 250,672,617,375,536.09/21,306,719.08 - Step 6: Final answer
x = 11,764,956.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.