Finding the Fourth Proportional to 12,303,777.78, 16,979,132.63 and 6,797,507.74
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Solution
The fourth proportional to 12,303,777.78, 16,979,132.63 and 6,797,507.74 is: 9,380,516.09
Step by Step Solution
- Step 1: Write the proportion equation
12,303,777.78 : 16,979,132.63 = 6,797,507.74 : x - Step 2: Convert to fraction form
12,303,777.78/16,979,132.63 = 6,797,507.74/x - Step 3: Cross multiply
12,303,777.78x = 16,979,132.63 × 6,797,507.74 - Step 4: Simplify right side
12,303,777.78x = 115,415,785,470,911.55 - Step 5: Solve for x
x = 115,415,785,470,911.55/12,303,777.78 - Step 6: Final answer
x = 9,380,516.09
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1.5x scale
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.