Finding the Fourth Proportional to 18,079,730.88, 27,119,596.32 and 7,980,339.84
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Solution
The fourth proportional to 18,079,730.88, 27,119,596.32 and 7,980,339.84 is: 11,970,509.76
Step by Step Solution
- Step 1: Write the proportion equation
18,079,730.88 : 27,119,596.32 = 7,980,339.84 : x - Step 2: Convert to fraction form
18,079,730.88/27,119,596.32 = 7,980,339.84/x - Step 3: Cross multiply
18,079,730.88x = 27,119,596.32 × 7,980,339.84 - Step 4: Simplify right side
18,079,730.88x = 216,423,594,957,213.38 - Step 5: Solve for x
x = 216,423,594,957,213.38/18,079,730.88 - Step 6: Final answer
x = 11,970,509.76
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1.5x scale
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.