Finding the Fourth Proportional to 12,053,153.42, 18,079,730.13 and 5,320,226.06
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Solution
The fourth proportional to 12,053,153.42, 18,079,730.13 and 5,320,226.06 is: 7,980,339.09
Step by Step Solution
- Step 1: Write the proportion equation
12,053,153.42 : 18,079,730.13 = 5,320,226.06 : x - Step 2: Convert to fraction form
12,053,153.42/18,079,730.13 = 5,320,226.06/x - Step 3: Cross multiply
12,053,153.42x = 18,079,730.13 × 5,320,226.06 - Step 4: Simplify right side
12,053,153.42x = 96,188,251,395,393.17 - Step 5: Solve for x
x = 96,188,251,395,393.17/12,053,153.42 - Step 6: Final answer
x = 7,980,339.09
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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.