Finding the Fourth Proportional to 26,129,979.30, 39,192,436.20 and 7,934,334.42
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Solution
The fourth proportional to 26,129,979.30, 39,192,436.20 and 7,934,334.42 is: 11,900,732.56
Step by Step Solution
- Step 1: Write the proportion equation
26,129,979.30 : 39,192,436.20 = 7,934,334.42 : x - Step 2: Convert to fraction form
26,129,979.30/39,192,436.20 = 7,934,334.42/x - Step 3: Cross multiply
26,129,979.30x = 39,192,436.20 × 7,934,334.42 - Step 4: Simplify right side
26,129,979.30x = 310,965,895,545,314 - Step 5: Solve for x
x = 310,965,895,545,314/26,129,979.30 - Step 6: Final answer
x = 11,900,732.56
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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.