Finding the Fourth Proportional to 12,403,613.36, 18,608,228.04 and 4,316,970.80
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Solution
The fourth proportional to 12,403,613.36, 18,608,228.04 and 4,316,970.80 is: 6,476,433.50
Step by Step Solution
- Step 1: Write the proportion equation
12,403,613.36 : 18,608,228.04 = 4,316,970.80 : x - Step 2: Convert to fraction form
12,403,613.36/18,608,228.04 = 4,316,970.80/x - Step 3: Cross multiply
12,403,613.36x = 18,608,228.04 × 4,316,970.80 - Step 4: Simplify right side
12,403,613.36x = 80,331,177,088,421.22 - Step 5: Solve for x
x = 80,331,177,088,421.22/12,403,613.36 - Step 6: Final answer
x = 6,476,433.50
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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.